May-June. In August, the ‘Tardiva’ variety blooms. March – Prune entire plant back to 6-12 from ground around March 1st.
Many customers ask why their hydrangeas aren’t blooming. The primary reasons hydrangeas don’t bloom are incorrect pruning, bud damage due to winter and/or early spring weather, location and too much fertilizer.
There are hydrangea kinds that bloom on either fresh or old wood, or even both. Both new and old wood are the growth of the following year (spring), respectively.
- Consider that this year, you bought a Nikko Blue Hydrangea. For the next year, Nikko’s produce blooms in the fall. Your Nikko is therefore creating blooms this fall that will blossom in the spring.
- Therefore, you wouldn’t want to completely prune your Nikko Blue Hydrangea this fall while you are pruning your perennials. Pruning the Nikko Blue Hydrangea this fall would effectively mean cutting off your hydrangea flowers for the upcoming spring.
- The idea behind Endless Summer, a hydrangea variety that blooms on both old and new wood, is that the plant will set blooms this fall to blossom not only in the spring of the following year, but will also keep producing blooms in the spring of the following year to extend the blossoms into the summer.
- Once more, pruning your Endless Summer hydrangea in the fall would mean removing some of the flowers that would blossom in the spring.
The hydrangea’s plant tag will indicate whether it blooms on fresh wood, old wood, or both. It is typically preferable to wait until spring to prune your hydrangeas. As the plant grows, you’ll see stems that are fragile when bent and lack any leaves. Since these stems are dead and won’t produce any flowers, they should be clipped close to the plant’s base.
The second reason why your hydrangeas aren’t blooming is probably the weather. Buds of hydrangeas are extremely susceptible to cold. Therefore, it is a good idea to wrap your hydrangea for the winter if it is an old wood hydrangea. Keep in mind that old wood hydrangeas establish their blooms for the following spring in the fall. Therefore, you won’t have blossoms in the spring if the fall-produced buds are frozen in the winter.
You can wrap anything with regular burlap. Burlap should be wrapped around the plant and filled with mulch or leaves after the first hard frost and after the hydrangea’s leaves have dropped. In order for the buds to survive the winter and sprout the following spring, the plant receives insulation from this. Never wrap your hydrangeas in plastic. When warmer winter days arrive, the plant cannot breathe since plastic, unlike burlap, doesn’t breathe. As a result, the plant can heated to such high temperatures that it cooks within the plastic and perishes.
The second most frequent weather-related cause hydrangeas do not blossom is late spring killing frosts. We saw really chilly temperatures in April both this year and last year after beautiful spring days. When springtime temperatures drop below freezing, hydrangeas need to be covered with an old beach towel or sheet. Because of the temperature dip, there won’t be any blossoms.
The majority of hydrangeas require at least 3 to 4 hours of light per day to bloom. The best light is in the early morning, midday light is acceptable if it is dabbled light rather than beating sun, and afternoon sun is typically too hot. Check the plant label, though. Newer hydrangea cultivars are being created that can withstand more sun exposure time and sun intensity. A hydrangea in full sun will require much more watering than one in diffused light, so keep that in mind.
High nitrogen fertilizer should not be used to feed hydrangeas. Nitrogen is indicated by the first number on the fertilizer ratio. (The ratio stands for N, P, and K) For healthy leaves and general good growth, some nitrogen (N) is required; however, a ratio of 8-16-6 or any similar combination with a higher middle or phosphorus (P) value is preferred. The growth of roots and shoots is encouraged by phosphorus, which improves the blooming process.
Potash (K), the third element’s last quantity and the lowest ratio, is for plant hardiness. Because hydrangeas prefer acidic soil, they can be fertilized with fertilizers designed for such plants. Hydrangeas only require fertilizing twice a year, once in early spring and once in mid-summer. To avoid root burn, make sure the soil is always moist before applying a fertilizer.
Are hydrangeas a good plant for Georgia?
Georgia has experienced perfect weather this year, and hydrangeas are enthusiastically flowering. There are more than 1,000 blooms to admire in Gibbs Gardens, including native and developed varieties.
Can hydrangeas be grown in Atlanta?
Hydrangea shrubs come in hundreds of different varieties, and they are all incredibly diverse. Depending on how hardy they are, different species will prosper in various growing zones. Luckily, the growth environment in the Atlanta region is favorable to all varieties of hydrangeas! Any hydrangea will look fantastic in your garden with the proper maintenance.
Bigleaf hydrangeas require partial shade, which entails receiving around 6 hours of direct sunlight, ideally in the morning. Hydrangea Macrophylla Your plant’s leaves won’t droop if you provide them with afternoon shade.
Use 8-8-8 or 10-10-10 for your March, May, and July fertilization. Make sure the soil is kept moist at all times. Mulch will aid in retaining moisture. These hydrangeas can alter their color. Use acid-forming fertilizer if you desire blue flowers. Use a fertilizer with an alkaline base if you desire pink blossoms.
In Atlanta, “Bigleaf” hydrangeas often bloom in June and July. When you prune the blooms towards the end of their life cycle, new blooms will result.
Before August 1st, prune ‘Bigleaf’ hydrangeas since new buds start to form in the late summer. You run the risk of removing prospective blossoms if you prune in the spring!
Large, white hydrangeas with the common name “Smooth” are native to the Southeast. They thrive in moist soil with some shade, and they work wonders in landscaping with trees. Apply 10-10-10 fertilizer in the late winter and cover the roots with mulch to prevent evaporation.
The hydrangea variety “Smooth” blooms on new growth rather than on growth from the previous year because it is a new wood bloomer. As a result, prune these hydrangeas in the final weeks of winter before the start of the new year’s growth. For best growth, remove the oldest stems and top prune the newest branches. Cut the entire plant to a height of 12 to limit size.
In June and July, expect blossoms. If the old flowers are removed after blooming, these plants are capable of producing a second bloom in August or September.
Hydrangea Paniculata: Also known as “Tree hydrangeas,” these “panicle varieties” are native to the Northeast but are hardy in the Atlanta region. The “Panicle” hydrangea requires more sun than its relatives, in contrast to most other hydrangeas. They favor sunny or partially shaded areas with moist, loamy soil. Use 10-10-10 fertilizer between April through June.
‘Panicle’ hydrangeas require late winter pruning since they bloom on new wood. Because they can grow to resemble trees with appropriate trimming, they are known as “tree” hydrangeas.
The majority of “Panicle” hydrangeas bloom late in the season, sometimes not blooming until early September. Typically, the blossoms start out white and turn pink as the season goes on.
Alternative Types:
Hydrangea Quercifolia: “Oakleaf” hydrangeas are endemic to the South and prefer damp, partially shady locations. These plants’ foliage is much more spectacular than their flowers. The leaves change color in the fall to a deep crimson and bronze. The bark peels in an interesting way in the winter. Use 8-8-8 or 10-10-10 for spring and summer fertilization.
Because ‘Oakleaf’ hydrangeas grow on old wood, prune them at the start of August or when the blooms start to wane. Don’t prune over the winter because new buds will form at the end of the summer. However, you can trim to encourage growth.
Hydrangea Petiolaris: Because they may reach 60–80 feet tall, “climbing” hydrangeas are excellent for ground cover in Atlanta. These need to be planted against brick walls or trellises because they resemble ivy a lot. Plant in a place with well-drained soil that is wet and somewhat shady. Although the leaves itself won’t be harmed, too much shade will decrease the amount of blossoms. Use 10-10-10 for spring fertilization.
Hydrangeas that climb are ancient wood bloomers. Just prune this variety to keep it under control.
Examine the blooms for signs of damage.
Look for hydrangeas at the store that have vibrant, robust green leaves and bouncy blossoms. Check the petals for any brown spots, which would signify sun damage, advises BloomThat’s production director Callie Bladow. “Additionally, because cut flowers are stored cold, keep an eye out for black petals that could mean the blooms have been in contact with a refrigerator’s side. A flowering hydrangea should feel solid, not flimsy or spongy.” A healthy bouquet should last up to two weeks if you select one.
Cut garden-grown flowers with a sharp floral knife.
If you’re fortunate enough to have garden hydrangeas, you may easily bring them inside for a lovely arrangement. While working outside, cut them on the bias (a 45-degree angle) using a sharp flower knife or clean kitchen shears, then put them in a dish of lukewarm water. The optimal time of day to trim hydrangea blossoms, according to Bladow, is early in the day. “Leave the others to continue blooming and just select the most fully developed and mature blooms. Hydrangeas with full flowers will appear more “papery” than those with young buds.”
Prep them with alum powder.
The sap that hydrangeas create at the base of their stems needs to be sealed off in order for them to absorb water. After making a bias cut in the stem, Bladow advises dipping it in alum powder, an onion powder that can be found in the spice section of your local supermarket. “All that’s needed is a quick dip of the stem’s bottom, followed immediately by the vase.” If you don’t have alum powder, you can get the same result by dipping the stem in boiling water for around 10 seconds. Additionally, cut the leaves off the stem because they will use up all the water in the vase.
Get creative arranging with different flowers.
You can choose to use a traditional arrangement of only hydrangeas or you can try blending in other flowers or utilizing unusual vases. Bladow explains, “I adore utilizing glass apothecary jars with larger bases and petite vase necks. “Another way we enjoy using hydrangeas in our designs is as grids for other flowers. Simply insert them into the flower head; the hydrangea’s multiple stems will hold other flowers in place.” Hydrangeas can be arranged with any kind of flowers. She suggests combining some foliage, such as lemon leaf or variegated pittosporum, with roses, dahlias, and freesia.
Change the water daily.
According to Bladow, hydrangeas prefer chilly water, which should be replaced every other day with a new snip of the stems. You can fill the vase with some plain cane sugar or flower food from your cupboard. Keep your arrangement away from harsh sunlight. Additionally, Bladow advises soaking the entire hydrangea for around 45 minutes in cool water if your flowers are acting downcast. Shake them off, trim the bottom of the stem, and then submerge them in flower food-infused water. Your hydrangeas’ lifespan could be extended and they might even come back to life.
Does hydrangea like shade or the sun?
With the ideal balance of morning sun and afternoon shade, hydrangeas flourish. Even the sun-loving Hydrangea paniculata will thrive in some shade. Some hydrangea cultivars may survive complete shadow, though.
The oakleaf hydrangea, also known as hydrangea quercifolia, is a substantial species of hydrangea that may reach heights of up to eight feet. In a shade garden, this big bush makes a beautiful backdrop. The height will provide excellent midsummer seclusion. Oakleaf hydrangeas are summer bloomers with mostly white blooms, elegant oakleaf-shaped leaves, and lovely peeling bark.
Hydrangea anomala ssp. petiolaris is another choice for full shade. This climbing species, which has lacy, white blossoms in the summer, can reach a height of 50 feet if it is given adequate support. The foliage is a rich shade of green and would look wonderful growing up a tree trunk or covering the face of a building. It would also look lovely covering the roof of a garden shed.
Full shade cultivars require the same upkeep as partial shade. In the deeper shade, it will be especially crucial to keep the plants free of leaf litter and with excellent airflow. Water your plant once a week after it has become established. Keep a watch on the leaves, and if you notice any drooping, especially during the hot summer months, water them right away. The importance of this increases in hotter regions.
These leaves’ unique shape would be a lovely complement to Hosta leaves. The white blossoms would contrast nicely with the lighter hues of your shady blooms and provide some brilliant brightness to your shaded locations.
Shade Varieties
There are a few different hydrangea cultivars that thrive in the shade. Some types can even thrive in zones 3 (which doesn’t warm up until later in the spring), which is one of the coldest growing regions. Let’s examine some of the best shade selections!
Hydrangea quercifolia ‘Snow queen’
The movie “Snow queen” is stunning. The flowers are stunning, as they are with all hydrangeas. These rose blush-colored blossoms appear in the middle of summer. The foliage of this plant is my favorite component. The leaves begin the season in a very deep green, gradually changing to a deep reddish bronze color, and finally finishing in that shade, offering a stunning splash of color to your fall landscape.
Hydrangea quercifolia ‘Alice’
With a height ranging between 12 and 15 feet, this Oakleaf Hydrangea is one among the biggest. In the summer, this plant blooms with incredibly deep cream-colored flowers. A woodland garden would be a truly lovely place for “Alice.” This cultivar would look especially beautiful if it were grown as a bordering hedge.
Hydrangea arborescens ‘Annabelle’
‘Annabelle’ enjoys partial shade and has some of the largest flowers in the hydrangea family (12 inches wide!). These enormous blossoms can be supported all season long by the sturdy stalks. This shrub can grow up to five feet tall and five feet broad, so give it plenty of area to expand. These enormous, all-white blossoms bloom for a long time.
In a mass planting, as a specimen shrub, or as a foundation planting, “Annabelle” would look lovely. These bushes should still be included in your cutting garden. Imagine a bunch of flowers that large! Wow!