It’s not difficult to grow hydrangea in Houston (South Texas), but it’s also not simple. It can be very difficult to grow a beautiful hydrangea shrub that will blossom and endure in the sun and humidity.
It gets difficult when you have to choose the right variety up front. The Oakleaf hydrangea is the kind that thrives in our climate (Hydrangea quercifolia). Although it performs better than other varieties, this lovely shrub does not resemble the hydrangeas we see in books or at flower shops. The cream-colored, cone-shaped flowers on this 8-foot-tall shrub have a rounded appearance. Throughout the season, flowers will transform to pink and even reddish brown in the autumn (note: you cannot change the color of Oakleaf hydrangea by changing acidity of the soil)
PeeGee hydrangea follows as the best performer for South Texas on our list of hydrangeas (Hydrangea paniculata). Again, not the hydrangea you see in magazines. Typically white-green, cone-shaped blossoms eventually turn pink with maturity. If unpruned, PeeGee hydrangea can reach a height of 15 feet, which is impressive for a shrub. PeeGee hydrangeas can often be taught to resemble trees with correct pruning.
However, the picture-perfect French hydrangea or mopheads are what the majority of us would like to grow (Hydrangea macrophylla). These hydrangeas are undoubtedly the most challenging to grow in Houston (and southeast Texas). Do you feel up to the task?
Starting with the ideal location for hydrangeas: The east side of the home (or any other structure) will receive morning sun and afternoon shade. If space on the east side is not a possibility, your other choice is the north side. Of course, if you’re like me and have trouble with orientation, pull out your compass or pour yourself a cup of tea, and spend some time watching: Find a location that receives some morning sun but is sheltered for the majority of the day.
The size of your site is the second thing to think about. Hydrangeas require space to expand. Take into account that French hydrangeas can reach heights of 7 feet and a width of 8 feet. For your hydrangea to flourish, leave at least 2 feet in each direction (from the plant’s center) when you plant it.
The hue of the hydrangea is the third factor to take into account. In Southeast Texas, pink and red colored blossoms are the easiest to grow (our clay soil is very alkaline and as such works best for pinks and reds). Once you master hydrangea cultivation, you can experiment with altering the soil’s acidity (If you want blue hydrangeas, you will need to add Aluminum sulfate to the soil, to lower your pH and make soil more acidic).
Got it all? Let’s make a large hole. The hole must be twice as wide as the pot that your hydrangea came in. The hole should be dug to a depth equal to the soil in your pot plus 4 inches. Fill the hole with compost to a depth of about 4 inches. Add the soil you dug out over your hydrangea before planting it. Mix potting soil in with your clay soil if it’s too dense (keep the ratio 3:13 part potting soil, 1 part clay). Mulch should be applied to the top 4-5 inches of the plant. We advise using cedar mulch (keeps the termites away). Water the mulch until it’s evenly wet.
Maintaining the health of your hydrangea comes last but not least. Moist soil is ideal for hydrangeas. Hydrangeas require daily watering until they are established (2-3 weeks). Just water the dirt (mulch) around the roots; don’t water the leaves or the flowers; let the rain take care of it. Early in the morning is advised for watering hydrangeas, followed by late at night. Once established, you must experiment and make a few observations. Water your hydrangea bush every other day as of now. Maintain that schedule if your leaves appear healthy (not drying out or wilting). You need to reduce the frequency of watering if your leaves begin to turn yellow to rust-colored. Mulch will quickly become your closest ally. It safeguards the roots, effectively holds water, and gives bugs a place to live.
When should your hydrangea be planted is the next concern. The best response for our area is: When the weather is nice outside. It shouldn’t be very hot, wet, or cold: between November and April (weather report should not mention any hard freeze). Only from February to May do we often sell hydrangea at Scent & Violet.
Would you like to raise the ante a bit? Place thyme, lemon balm, and chives close to your hydrangeas. These plants may thrive in the shadow and will aid in luring helpful insects. Why not utilize some of them in your cooking as well? Also think about growing some native Texas flowers that do well in shade.
Your hydrangea lived and flourished, right? You want to prune it since it has gotten too huge. Check out this video from North Coast Gardening to learn how to prune hydrangeas properly.
A full-service florist in Houston, Texas, Scent & Violet, flowers and presents offers flower, plant, and gift delivery in Houston, Katy, Richmond, Fulshear, Sugar Land, and Bellaire. We want to develop a hassle-free, regular buying source for presents, plants, and flowers. We really believe that giving gifts can lead to stronger relationships, better settings, and better mental states than receiving them.
Are hydrangeas able to thrive in Texas?
Hydrangea shrubs come in a wide variety of shapes, sizes, and cultivars that come in an amazing array of colors. While some hydrangea varieties won’t do well in the stifling Texas heat, there are undoubtedly those that do well there.
The most common kind of hydrangea in our area is unquestionably the oakleaf variety since it can withstand the heat without becoming overheated. They don’t exactly resemble the common hydrangeas with bloom clusters in the shape of globes that frequently adorn the covers of home and garden publications. Oakleaf hydrangeas have tiny white blooms that grow in panicles that resemble cones and tumble downhill, giving them a hybrid appearance between hydrangeas and lilacs. As you may undoubtedly infer from the name, its lobed leaves resemble oak tree leaves quite a little. Before the plant goes dormant for the winter, the blossoms change as they ripen from milky white to delicate pink and occasionally take on a wine-red hue. Oakleaf hydrangeas can grow up to 7 feet tall when fully grown.
Another magnificent species of hydrangea that thrives in Texas is PeeGee. With huge, cloud-like bunches of blooms reaching heights of up to 15 feet, they are absolute attention-getters. These shrubs are excellent accent plants for the front yard because you can even train them to grow into trees. PeeGees have blooms that start out white with a delicate green tint and gradually grow more pink as they mature, much like oakleaf hydrangeas do.
The traditional variety of French hydrangeas that you frequently find in bridal bouquets. Their mophead-shaped, spherical blossoms appear in a stunning array of white, green, purple, pink, and blue hues. By experimenting with the pH and Aluminum levels in the soil with different amendments, you can even extract a Sleeping Beauty and turn them from pink to blue, or from blue to pink. Although these hydrangeas are extremely popular in more Northern parts of the US, they are obviously more difficult to maintain in Houston, but it is possible with the right care. You may create the garden of your dreams if you take extra care to ensure that the striking, icy blue blossoms receive all they require to thrive.
What month should hydrangeas be planted?
Learning the fundamentals of how to plant hydrangeas can help you save time and money, just like with most other items in your garden. You’ll improve your chances of enjoying big, vibrant hydrangea flowers for years to come by picking the appropriate site, getting the soil just right, and planting correctly.
When should I plant hydrangeas?
The best time to grow hydrangeas is in the fall, followed by early spring. The goal is to provide the shrub lots of time to develop a strong root system before it blooms. Early in the day or late in the day are the ideal times to plant. The day’s cooler hours provide relief from heat exhaustion. Water new plants frequently until they get established.
Locations to plant hydrangeas
The first step is knowing where to grow hydrangea plants. Hydrangeas are frequently grown in beds adjacent to houses or fences. This is so because hydrangeas prefer the mild early sun to the hot afternoon sun. A protected area with sunny mornings and shaded afternoons is the ideal spot to plant hydrangeas. This is frequently found on the north or south side of a house. Avoid planting underneath trees since it could cause competition for nutrients and water. Flowers and leaves can both be destroyed by strong winds.
hydrangea-friendly soil
The soil needs to be rich in organic matter for hydrangeas to thrive. Drainage is important. Although hydrangeas prefer damp soil, they cannot stand standing water. Root rot can be brought on by wet, poorly draining soils. Your hydrangeas could pass away in a matter of weeks. Consider adding a lot of compost to your heavy soil before planting to increase the soil’s quality.
Methods for planting hydrangeas
Simply dig planting holes that are 2 feet wider than the root ball for planting hydrangeas. So that your plant lies level with or just higher than the surrounding soil, match the depth of the hole to the size of the root ball. You can improve water drainage away from the plant’s base by making a small mound.
The best way to grow hydrangeas
Simple propagation methods can multiply a single hydrangea into several more. The optimal time to layer bigleaf and panicle hydrangeas is in the early to mid-summer. You only need to:
- Close to your hydrangea plant, make a tiny trench.
- Bend a branch such that the middle of the branch meets the earth in the trench (six to 12 inches of branch should extend past the trench).
- Where the branch meets the trench soil, make scuff marks on the bark.
- After the trench is filled, cover it with a paver, brick, or stone.
- The branch can be transplanted to a different area once it has established its own root system over time.
Hydrangeas with smooth or oakleaf leaves produce new growth from underground stems. Simply separate the baby plant from the main plant by digging it up. After then, it can be moved to a new spot.
Where should hydrangeas be planted for greatest results?
Plant hydrangeas close to a water source in an area with lots of light. Choose a location in the South where there is morning sun and afternoon shade. Hydrangeas can tolerate full-day sun in the north.
How should a hydrangea be planted?
Hydrangeas have huge bloom heads and exude an old-fashioned elegance. How to plant and take care of beautiful floral bushes is explained in our hydrangea growing guide. Additionally, learn the answers to frequently asked questions like “why aren’t my hydrangeas blossoming this year?”
About Hydrangeas
These elegant plants are simple to grow, withstand nearly any sort of soil, and produce an abundance of blossoms that are unmatched in the world of shrubs for their stunning flowers. Clear blue, vivid pink, frosty white, lavender, and rose blossoms sometimes grow on the same plant, enticing us with their colors.
From container gardens to shrub borders to group plantings, hydrangeas are great for a variety of garden locations. Breeders seem to give us more possibilities every year, and gardeners have countless expectations for bloom size and color. Varieties abound. Pay attention to the species listed below to get an idea of how your hydrangea will develop as some require different maintenance. The joys you experience will be enhanced when you know what to expect.
Enjoy this tribute to hydrangea beauty and read our guide below to discover how to grow hydrangeas.
Where to Plant Hydrangeas
- The majority of hydrangeas like fertile, moisture-rich soils that drain well. Compost can help improve bad soil.
- Hydrangeas typically prefer some sun. In an ideal world, they would receive full sun in the morning and then some afternoon shade to avoid the intense midday sun. The Bigleaf Hydrangea (H. macrophylla), with its huge, prone-to-wilting leaves, is a prime example of this. Some kinds can withstand more direct sunlight.
- Depending on the kind, place hydrangeas anywhere between 3 and 10 feet apart. Plants should always be spaced according to their anticipated mature size!
When to Plant Hydrangeas
- The optimum season to plant hydrangeas is in the fall, followed by spring. The cooler shoulder seasons are the ideal times to plant shrubs because they will have plenty of time to build a strong root system before the intense heat of summer or the bitter cold of winter.
- In the early morning or late afternoon, plant the shrubs. The plant is less prone to experience heat stress from direct sunshine because it is typically cooler.
How to Plant Hydrangeas
- Gently remove the hydrangea from its container and examine the root ball. Snip off any rotten or dead sections, and if the plant is very root-bound, pry the roots free.
- Make a hole that is two to three times as big and as deep as the root ball. The top of the planting hole should be level with the base of the plant, which is where the stem joins the earth.
- After placing the plant in the hole, add enough soil to fill it halfway. generously hydrate. Fill the remaining space in the hole with soil once the water has been absorbed.
- once more, thoroughly rinse.
How to Grow Hydrangeas from Cuttings
Cuttings of hydrangeas can be easily grown. They easily take root, and the process is a wonderful teaching tool for propagation. This is how you do it:
- Find a branch on a mature hydrangea that is fresh growth and has not flowered. In comparison to older growth, new growth will appear lighter in color, and the stem won’t be as firm.
- Make a horizontal incision 4 to 5 inches down from the branch’s tip. Make sure your cutting has at least three to four pairs of leaves.
- Trim the cutting’s lowest pair of leaves so that they are flush with the stem. If you can afford to remove more than one pair of leaves, do so. Roots develop more readily from these leaf nodes. But make sure to leave at least two pairs of leaves at the cutting’s tip.
- Remove the tip half of any leaves that are still pretty large by cutting them in half. This keeps the leaves from slamming into the sides of the plastic bag you’ll later use to cover the cutting (to keep the humidity up).
- (Optional) Sprinkle rooting hormone and a plant antifungal powder on the stem’s leafless area (both available at a local hardware or garden store). This will promote roots and deter decay.
- Prepare a small pot and put moistened potting soil inside. The cutting should be planted in the ground, buried down to the first remaining pair of leaves. Lightly water the area surrounding the stem to close any air spaces.
- Wrap a plastic bag loosely around the entire pot. To prevent the cutting’s leaves from rotting, make sure the bag is not touching them. The bag can be supported by chopsticks or other such objects to keep it off the leaves.
- Put the pot in a warm location that is protected from the wind and sun.
- Only rewater your cutting after the top layer of soil is dry after checking on it every few days to make sure it isn’t decaying. In a few weeks, hopefully, the cutting will start to root! If you feel resistance when you gently tug on the cutting, roots have grown.
Watering
- Make sure hydrangeas get enough water for the first year or two after planting and throughout any droughts.
- Over the course of the growing season, water at a rate of 1 inch per week. Three times a week of heavy watering is preferable to shallow watering. Root growth is promoted by this.
- All varieties of hydrangeas benefit from constant moisture, but bigleaf and smooth hydrangeas need more water.
- If the soil is too dry, the leaves will wilt, and there won’t be enough moisture for the flowers to bloom.
- To water thoroughly while keeping moisture off the flowers and leaves, use a soaker hose.
- The best time to water hydrangeas is in the morning to protect them from disease and get them ready for the heat of the day.
- Under your hydrangeas, spread organic mulch to help keep the soil cool and moist, gradually add nutrients, and enhance soil texture.
Fertilizing
You might not need to fertilize hydrangeas if your soil is rich. When fertilizer is applied in excess, blossoms are sacrificed in favor of green growth. A soil test is the most effective tool for determining your fertility requirements.
Apply fertilizer according to the type of hydrangeas you have. Every variety has varied requirements and will profit from applying fertilizer at various times.
- Several mild fertilizer applications in March, May, and June are beneficial for bigleaf hydrangeas.
- Two applications in April and June work best for oakleaf and panicle hydrangeas.
- The only time smooth hydrangea plants require fertilizing is in the late winter.
Winter Protection
- Cover plants with bark mulch, leaves, pine needles, or straw in the fall, at least 18 inches deep. If at all feasible, create cages out of chicken wire or snow fencing and cover the entire plant, including the tip, with the cages. (Avoid using maple leaves; they have a tendency to mat after becoming wet and may suffocate the plant.)
How to Prune a Hydrangea
Many of the queries from readers concern hydrangea trimming. It makes sense that it’s unclear because it relies on the hydrangea kind. Fortunately, identifying which type you have makes determining the best pruning strategy simple. Discover the fundamentals below, then read more about pruning different varieties of hydrangea here.
Pruning Common Hydrangeas
The Bigleaf cultivar of Hydrangea macrophylla is the most popular garden hydrangea shrub. (For more, see below.)
Hydrangeas with large leaves, such as Bigleaf (H. macrophylla), Oakleaf (H. quercifolia), Mountain (H. serrata), and Climbing (H. anomala subsp. petiolaris), are pruned AFTER the summer blooms have passed. On stems from the previous season, these kinds bloom (“old wood).
- Avoid pruning after August 1 since flower buds actually grow in the late summer and bloom the next season.
- Dead wood should only be removed in the fall or very early spring.
- To stimulate branching and fullness, trim one or two of the oldest stems by cutting them all the way to the ground.
- Pruning the stems all the way to the base is necessary if the plant is old, neglected, or injured. For the following season, you’ll lose the flowers, but you’ll also revive the plant for subsequent ones.
- The huge Mopheads should not be deadheaded (faded flowers removed); instead, you should leave them over the winter and trim them back in the early spring (to the first healthy pair of buds). Deadheading Lacecaps is OK; simply trim down to the second set of leaves below the bloom head.
- Avoid pruning unless it is absolutely required while growing H. macrophylla (and H. serrata) cultivars in Zones 4 and 5, and then only after blooming. If not, merely remove dead stems in the spring.
Pruning Other Hydrangeas
Hydrangeas called Panicle (H. paniculata) and Smooth (H. arborescens) are clipped BEFORE flower buds develop. On stems from the current season, these kinds blossom (“new wood).
- When the plant is dormant in the late winter, prune. The plant will therefore grow new buds in the spring that will result in blossoms even if the winter kills the buds.
- In general, avoid pruning to “shape the bush” and just remove dead branches.