Depending on the type, succulents need six hours of sunlight each day because they are light-loving plants. You might need to gradually expose newly planted succulents to full sun exposure or give shade with a translucent screen because they can burn in direct sunshine.
In the summer, how frequently should you water succulents?
Summer is coming up quickly! Additionally, proper watering is crucial for happy, healthy succulents as temps climb.
There is a widespread misperception that succulents require little or no water. Given that such fat leaves store a variety of reserves for the plants, there is some validity to the statement “require very little.” However, because of their reserves, they require less irrigation overall than other plants. The truth is that succulents like water, and they prefer to be deeply irrigated, once their reserves have been somewhat depleted.
Frequency
You should water your succulents roughly once a week if you are keeping them outside or in a greenhouse throughout the summer. The soil should be getting close to being completely dry, but not for too long.
Technique
Make sure to water established plants until their deepest roots are submerged in water. As a general rule, keep watering until water begins to emerge from the pot’s bottom. Deep watering will encourage strong root development, which will make the plants healthier. A less established plant and a shallow root system are the results of frequent, superficial watering.
But succulents don’t like to stay in moist environments for too long. Drainage is crucial, thus. In the ground, adding some pumice to your soil will improve drainage. A well-draining potting mix and a container with a drainage hole will work for your container garden.
Here is an illustration of two identical haworthias that were cultivated using various watering techniques. The left was watered lightly; the right was watered deeply until water ran out of the bottom of the pot. The end result is that the haworthia on the left is smaller and its root system is less established. The haworthia to the right is full, has a solid root structure, and is beautifully colored green.
Timing
The optimum time of day to water succulent plants in the summer is in the early morning before temperatures rise. You may prevent hot water from sitting in the crown of your plant and perhaps scorching it by avoiding watering in the afternoon when temperatures are at their highest.
If watering in the morning is not possible, watering in the evening is an option. This is a bad idea to do in the cold, though. In the colder months, keeping the plants damp all night makes them more vulnerable to fungus. To be safe from such cultural concerns, we err on the side of keeping our plants a little dry over the winter.
Exposure
Remember that, like us, succulents require a little more sun protection during these hot summer months. If their leaves are left in the sun for an extended amount of time, they will burn. We advise keeping your succulents in a position with dappled shade from a tree or under an awning for partial shade.
The health of your succulent depends on water. A vigorous plant that is more resistant to pests and disease will result from good root health and good watering. Additionally, the other living organisms in your garden need on water. Bees, butterflies, and hummingbirds are just a few of the pollinators that depend on the water we water our plants with.
Can succulents endure the heat?
Don’t allow the hot, harsh sun hurt your succulents! Unlike frost (temperatures of 32 degrees Fahrenheit or lower), heat normally poses no threat to succulents. The majority of plants can tolerate temperatures higher than you’re comfortable with, as shown by greenhouse temperatures that rise into the triple digits on hot days, despite the fact that some don’t seem to thrive in temperatures above 80 or 90 degrees F. Succulents, though, can succumb to heat and sunlight. All smooth-leaved succulents, excluding desert cacti and agaves, require sun protection in the summer, especially when the temperature rises beyond 80 degrees.
If you live in an arid climate ~
- Identify the sun’s position relative to your property. In North America, plants growing on the north side of your house will receive the least solar exposure while those growing on the south will receive the most. My garden, which faces east, receives early sunlight and midday shade. West-facing gardens receive early shade and afternoon sun.
- When temperatures are at their highest in the middle of the day, “bright shade” (no direct sun but not deep shade) is great for non-desert succulents. For low-light succulents like haworthias, bright shade is needed. Visit our website’s Shade Succulents page to learn more. View my video about Shade Succulents.
Above: Although robust, the echeverias on the left in the brilliant shade have lost their color. The borders of those exposed to more sun are red, but they are smaller due to some stress.
- Keep track of where each new plant you purchase was situated in the nursery. Was it in the open or covered by a tarp? It will need to be “hardened off” (shaded, especially in the afternoon) until it acclimates, even if it is a “full sun” succulent like an agave. This kind of exposure is like tanning: Start with 30 minutes of sun, then gradually increase it by about an hour per day.
- Aloes and crassulas need at least a half-worth day’s of sun to turn red and orange, but not so much that the tips of the leaves shrivel or burn. (Read “How to Stress Succulents and Why You Should. “).
Above: Dryness and heat stress this jade (Crassula ovata). To maintain its life, the plant is gently draining its leaves. However, leaves will be plump and greener after irrigation or rain (which could take months).
- Cover exposed, horizontal stems of trailing succulents (aloes, senecios, othonna, and the like) with dry leaves or mulch to prevent burnt stems from impairing the ability of the plants to transfer moisture from roots to leaves.
- Use floating row covers (preferably), shade cloth, old sheets, or temporary shade structures to protect newly installed plants and in-ground succulents prone to sunburn. I employ rusty window screens. In an emergency, place upright leafy tree trimmings next to a plant you wish to preserve, on the side that receives the most sunlight. Or, in keeping with the sun’s movement throughout the day, use outside furniture.
Above: Aloe brevifolia, a stunning but stressed plant, has closed its rosettes and changed color from blue to pink.
- Learn how plants defend themselves. When the sun becomes unpleasant, succulents can’t flee to the shade, so some species create their own. Succulents with rosettes, such dudleyas, aeoniums, and some types of aloe, close their rosettes to save their critical cores. Lower leaves that become dry but don’t drop off serve a service by protecting flimsy stems from the sun in the summer and the cold in the winter.
- Where shade will be needed during the long, hot summer afternoons, plant trees and plants. (The Companion Plants chapter in Designing with Succulents, 2nd ed., has information on low-water cultivars suitable for succulent gardens.)
What sunburn looks like
The floppy leaves of this agave stretch (and weaken) the cells in those areas that are most exposed to sunlight.
Succulents with white, beige, or black patches have been sunburned, which causes irreparable cell damage comparable to frost. The plant is alright, but scars will endure just as long as the leaf.
These aeoniums generally have sunburn on the underside of their lowest leaves, which they will shed in a few months anyhow. Very effective, wouldn’t you say?
Several months later, the same aeoniums. Only a few scorched leaves are still visible.
It is preferable if the damaged parts are on the outer leaves because fresh growth from the rosette’s center will eventually cover up burnt spots. In any event, lower leaves naturally wither and fall off, damage or not. Recovery from a sunburn could take several months to a year, depending on the succulent and the time of year.
Related Info:
Summertime Succulent Watering. Okay, everyone is aware that succulents require little water. They aren’t “no-water plants,” though. Even though they might make it through the summer without irrigation… [Read more…]
A heat wave shouldn’t ruin your succulents. Succulents that are exposed to the scorching sun may burn when a heat wave follows cool weather. The beige or brown patches that develop as a result of sunburn cannot be removed. [Read more…]
Succulent Stress Management (and Why You Should). Some succulents exhibit beautiful reds and yellows when exposed to lots of sunlight, but how much “stress” the plants need depends on… [Read more…]
How are succulents maintained indoors?
Succulents may not need much attention, but they do need a few essentials to survive:
- 1. Provide plenty sunlight. Succulents require adequate light—at least six hours each day of direct sunlight. Maintaining succulents outside can be quite simple. However, if you have a succulent indoors, you must keep it in direct sunlight near a window. A plant that is slanting toward the light is not receiving enough sunlight, yet a plant with burnt areas on its leaves is receiving too much direct sunshine.
- 2. Use proper water. Depending on the season, succulents might have different water needs. Succulents should be irrigated if their soil dries completely during the growing season, but excess water should be avoided. When a succulent’s roots have time to dry out in between waterings, its lifespan is increased. In the chilly winter months, succulent plants go dormant and require less water. Only water your succulent as often as necessary because overwatering the soil is one of the main reasons of most development problems.
- 3. Use the proper soil and pot combination. The appropriate container and potting soil can make all the difference, whether you’re growing your own succulents or purchasing one from a nursery. Your succulent planter needs to include a drainage hole if it is going to be an outdoor succulent. Proper drainage allows moisture to escape, allowing the soil and root systems to dry and prevent rot. Use well-draining soil instead of standard dirt if you have an indoor succulent. It is coarser than regular soil, enabling more air to pass through and encouraging evaporation rather than requiring to be drained. To increase aeration, perlite and pumice can be added to some potting mixtures.
- 4.Remember to fertilize. The periodic fertilizing is beneficial for even low maintenance desert plants. To give your succulents a boost, use a diluted, water-soluble all-purpose fertilizer a couple times a year. Although it’s not entirely required, if you notice that your soil needs some help, add a little fertilizer.
- 5. Examine your plant life. Pest hazards are more likely to affect a succulent indoors than outside. Make sure your plants are periodically checked for gnats or mealy pests. These insects are a sign that your plants are receiving too much water or fertilizer. Mealy bugs can lay hundreds of eggs and consume the plant juices that serve as their host, gradually harming your plant. Rubbish alcohol can be sprayed on your succulent’s leaves or soil to effectively kill mealy bugs and their eggs. Check the leaves and soil of the succulent before bringing it home from the nursery to make sure no bugs are present.
Do succulents prefer intense sunlight?
On the east side of my home, where my succulent collection is located, it receives direct sunlight from dawn till around 1:00 in the afternoon. There is a lot of sunlight here!
I’ve discovered that in order to keep the roots cold and the foliage lush, I need to water my plants every other day when the temperature is above 90.
The succulent leaves still get heated despite this constant watering, and I’ve had some, but rather severely. It can be unpleasant when the bright light and hot temperatures combine.
Most succulents will tolerate full sun for the majority of the day if you progressively expose them to it (raising an hour or so every few days).
To shield them from the direct sun, I recently put some shade fabric. Even though it’s still well above 90 degrees outside, the space around the succulents is significantly cooler thanks to the shade cloth.
Additionally, without direct sunlight, the plants’ leaves don’t get as hot and are less prone to burn or exhibit signs of excessive heat.
Haworthias, for example, prefer bright indirect sunlight all day long. On the other hand, the majority of cacti can withstand full sun during the day without any shade. This is why it’s crucial to be aware of the varieties of succulents you own.
The phenomenon known as “blushing,” which occurs when some succulents are exposed to bright sunshine, causes the leaves to occasionally turn a deep red, as with this Aloe ‘Crosby’s Prolific’.
Simply placing your succulents in a location that receives bright shade for the majority of the day is an excellent alternative. They should ideally be in a spot that receives a few hours of early sun but is otherwise shaded for the majority of the day.
Direct sunlight during this time can be an issue because afternoon temperatures are typically higher. On the other hand, morning sun is cooler and less prone to result in sunburn.
For many succulents, extreme heat can be exceedingly difficult. Succulents are often thought of as desert plants, however not all of them thrive in a very hot desert environment.
For more advice on how to keep succulents looking fantastic during a heat wave, see the video below:
Do cacti require sunlight?
Depending on the type, succulents need six hours of sunlight each day because they are light-loving plants. You might need to gradually expose newly planted succulents to full sun exposure or give shade with a translucent screen because they can burn in direct sunshine.
Are succulents able to endure shade?
Your aim is to provide as much sun as they can bear without burning because light improves the development, form, color, and blossoms of succulents (and other plants, for that matter).
Below in my gallery of outdoor shade succulents, I’ve ID’d each one along with how much shade it wants, abbreviated PS, BS or FS.
Adapt my three shade options to your specific region. Closer to the water and farther from the desert, succulents can withstand more solar exposure. These are primarily for Zone 9b (inland Southern California), where I have planted a variety of succulents for shade for the past 25 years.
Part shade (PS)
This is sometimes referred to as semi-shade and consists of bright shade for the majority of the day and full sun for a few hours in the early morning or late afternoon. “Dappled light” or “dappled sun” that glimmers through a canopy of leaves can also be considered part shade.
Bright shade (BS)
This is side-facing indirect light that reaches plants when they are placed beneath eaves, shelves, tables, or trees. Bright shade, often known as “filtered light,” is common in greenhouses, nurseries, lath houses, shade structures, as well as under patio umbrellas and sun sails.
Full shade (FS)
If any sunlight reaches plants in full darkness (also known as “deep shade”), it is weak and fleeting. Some succulents, like sansevierias, can survive in complete darkness, but for the most part, they require some sun to grow and look their best.