Account Navigation

Account Navigation

Currency - All prices are in AUD

Currency - All prices are in AUD
 Loading... Please wait...
Mountain Crest Gardens

Succulent Care

succulent-care-banner.jpg

Welcome to the fascinating world of Soft and Hardy Succulents! Their variety, color and texture will intrigue you, while their ease of propagation and low maintenance requirements will help give you years of growing satisfaction.

On this page we cover the basics for growing and maintaining your succulent plants, including hardiness information, soil suggestions, sunlight and watering tips, propagation techniques, and dealing with pests & diseases.

Topics:

What are Hardy Succulents?
What are Soft Succulents?
Plant Hardiness
Garden Soil and Potting Mix
Planting and Care
Propagation
Pests and Diseases
Recommended Books
Green Wall Guide

USA Plant Hardiness

Below is the basic USDA Hardiness Zone Map. Click the image (or click here) to go to the USDA website and get more detailed info about your specific zone.

zonemap.jpg

Products By Zone [PDF] | Zone By Products [PDF]

What are Hardy Succulents?

Hardy Succulents will survive winter temperatures for the vast majority of people living in the United States. Most are hardy to USDA Zone 5 (-20 to -10 F), but can go as low as Zone 3 (-40 to -30 F).

Common Hardy Succulents include: Sempervivum (Hens and Chicks), Sedum (Stonecrops), Jovibarba heuffelii, Jovibarba hirta, Delosperma (Ice Plants), Rosularia, and Orostachys.

What are Soft Succulents?

The term “soft succulents” (also known as “tender succulents”) covers a broad range of succulents that are less tolerant of cold temperatures than “hardy” succulents. We typically consider plants rated USDA Zone 9 (20 to 30 F) and above to be Soft Succulents, but some plants in the category go as low as Zone 7 (0 to 10 F).

Common Soft Succulents include: Echeveria, Crassula, Jade, Kalanchoe, Aloe, Aeonium, Tender Sedums, and Senecio.

Echeveria Sher - Plant Care

Plant Hardiness

Hardy Succulents

All Hardy Succulents are hardy to USDA Zone 5 (-20 F) unless otherwise noted. Some varieties, such as a number of the Sedum and Jovibarba heuffelii, can be grown in Zone 4 or Zone 3. A number of hardy succulents will change colors or go dormant (lose their leaves) in order to survive the winter cold. Click here for more info on winter changes.

Soft Succulents

Soft Succulent hardiness varies among the different types. All can be grown outside in frost free areas (USDA Zone 10 and higher). Almost everywhere, they can be grown in containers and moved inside for the winter.

However, most of the Soft Succulents with rosettes of thick fleshy leaves, such as many of the Echeveria, are partially hardy to at least the mid 20’s F (approx. zone 9). Soft Succulents with thinner individual leaves, like most Kalanchoe, can briefly tolerate temperatures just below freezing but are killed back to the roots when the temperature reaches the mid 20’s F. This modest hardiness means that they do well outdoors in areas that receive only light frost (such as many coastal locations) and in protected spots in colder areas.

Garden Soil and Potting Mix

One of the most crucial parts of working with succulents is having a well-draining soil. Succulent roots will rot if they sit in water or wet soil for too long. If the soil you are working with doesn’t drain well, you can add a soil amendment such as pumice, perlite, or coarse sand. These will help loosen the soil and allow the water to drain more quickly, thus allowing the soil to dry faster. When planting succulents in the ground, creating mounds or planting on a hill will also help increase the drainage.

It is even more important to have well-draining soil for succulents grown in containers. In general, it’s best to use a pot with a drainage hole to allow water to flow out of the pot. Succulents will do best in a soil with a particle size of roughly ¼” or 6mm. Standard potting soil is too dense for succulents and doesn’t allow their roots to get the oxygen they need.

While most store bought succulent and cacti mixes (e.g. Miracle-Gro Cactus, Palm, and Citrus, Black Gold Cactus Mix) will be fine for succulents, mixing your own will generally produce the best results. The best ratio for succulent soil is ⅓ organic material such as coconut coir or pine bark fines and ⅔ inorganic material such as crushed granite, coarse grain sand, perlite or pumice.

Read more about this topic at Succulents and Sunshine: Well-Draining Succulent Soil

Using a top dressing, such as a pea gravel or decorative rock is recommended. It adds a professional touch to an arrangement and minimizes moss growth. A top dressing also keeps succulent leaves off of the soil which can help prevent rot.

Read more about this topic at Succulents and Sunshine: Top Dressings

Your succulents will also benefit from regular fertilizer. Use a fertilizer with low nitrogen such as a 5-10-10. It’s best to dilute the fertilizer to half strength to prevent burning your succulents. Spring is generally the best time to fertilize as this is when most succulents begin actively growing.

Read more about this topic at Succulents and Sunshine: Fertilizing Succulents

 Soil - Mountain Crest Gardens - Plant Care

Planting and Care

Weather and Sun

Succulents tend to prefer a temperate climate. Generally they do best in areas with filtered sunlight and temperatures below 90 degrees. Most succulents can tolerate full sunlight, however some can get sunburn if they are in full sun during the afternoon when the temperatures are highest (Aeonium are especially susceptible). Full sun in combination with temperatures above 90 can damage most succulents. Morning and/or evening sun with afternoon full or partial shade (at least 50%) is ideal.

Newly planted succulents, especially those that have been growing in a greenhouse, will need to be shaded for a few days and gradually introduced to more sunlight. This is also the case when bringing succulents that have been grown indoors outside.

Read more about this topic at Succulents and Sunshine: Succulents and Heat - Bringing Tender Succulents Outdoors for the Summer

Colorful succulents will maintain their color best with at least 6 hours of bright, indirect sunlight each day. Without enough sunlight they begin to revert to green and stretch out. Heat and extreme cold generally bring out the deepest color in succulents. Most Sempervivum have their richest color in spring when extra sunlight combines with cold nights. Some succulents, such as the Jovibarba heuffelii and many of the Soft Succulents, keep their color better when it gets hot.

Read more about this topic at Succulents and Sunshine: Keeping Succulents Colorful

Winter and Cold Temperatures

Cold hardy succulents will do well year round outdoor. They can tolerate freezing temperatures for extended periods of time, though many varieties will go partially or fully dormant in late fall (e.g. hardy Sedum). Most tender (“Soft”) succulents will die if the temperature falls below freezing for more than a day or two, but many will survive below 32 for brief periods of time (6 hours or less in a night). You can move tender succulents indoors for the winter and bring them out again in the spring.

Read more about this topic at Succulents and Sunshine: Winter Care of Tender Succulents

Some succulents change very little during the winter months, while others change dramatically. Click here to read our blog article for more information on this topic.

Watering

A common misconception is that succulents don’t need very much water to survive. They in fact need enough water to keep their leaves, stem and root full in order to withstand periods of drought.

The best way to water succulents and encourage healthy root growth is to completely soak the soil and allow it to dry out completely before watering again. Lightly spraying the soil will cause succulents to put off small thin roots which will easily wither and die. Soaking the soil allows them to absorb the water they need. Letting the soil dry out completely allows the succulent time to grow and put off strong healthy roots.

How frequently you water is greatly determined by your climate, soil and the type of succulents you are growing. When the weather gets hot your succulents will need more water than in the winter when it’s cold and they are dormant. Succulents with thick leaves will tolerate longer periods of drought, whereas succulents with thinner leaves will need to be watered a little more frequently.

Watering once a week is a good place to start if you’re unsure of how often to water. However, you’ll want to adjust based on temperature and the type of succulent you’re growing. Look for signs of watering problems to help determine if you need to increase or decrease your watering frequency. Making gradual changes to the watering frequency as you notice early signs of over or under watering will help ensure your succulents stay healthy.

Read more about this topic at Succulents and Sunshine: How to Water Succulents

Symptoms of Water Problems

Over watering is one of the most common ways to kill succulents. An early sign of over watering is your succulent’s leaves falling off with just a slight bump. As the damage from over watering continues, your succulent’s leaves will begin to yellow and look more transparent. The leaves will feel mushy and wet. At this point the best option is to let your succulent dry out for a few days and reduce your watering frequency in the future.

If your succulent starts to blacken around the stem or leaves, it is suffering from rot. You’ll want to cut off the succulent above the rot, allow the cutting to dry for a few days and then replant the cutting in soil.

When a succulent isn’t getting enough water you’ll notice the leaves start to look limp and soft. You may begin to notice wrinkling near the top of the plant in the new growth. The lower leaves of succulents will die eventually as part of their normal life cycle. If you notice that the leaves are drying up faster than usual, you’ll want to increase your watering frequency slightly.

It’s much easier to rescue a succulent that has been under watered so when in doubt, water less often. Then, if you notice signs of under watering, gradually increase how often you’re watering.

Read more about this topic at Succulents and Sunshine: Rescuing Over and Under Watered Succulents

Related blog post: When should I water my succulents?

Containers

Succulents are tough plants and can grow in a variety of places. For long term growing, it’s generally best to place them in a container with a drainage hole and to use well-draining soil. While you can plant succulents in fun containers with no drainage such as old shoes, tea cups, votives, etc. they may not be the best long term solutions due to watering challenges. Terracotta or ceramic pots will dry out more quickly than plastic or other materials, so be sure to adjust watering accordingly. As succulents get too big for the container they are in, you can cut back the new growth and plant it elsewhere or move the whole plant to a larger container.

Read more about this topic at Succulents and Sunshine: Choosing Pottery for Succulents

Browse our selection of pots for succulents here: Pots for Succulents

Most succulents also perform well in raised beds and rock gardens where they can be easily viewed. You'll want to check the hardiness rating on any succulents before you plant in the ground to make sure they will survive the winter in your zone. Also be sure to plant them in well draining soil.

Air Plants - Tillandsias

Tillandsias are low maintenance plants that only require water. Most varieties do fine with weekly misting/showering, but larger plants need to be dunked in water for 15-20 minutes per week. These plants will thrive in dry or humid climates as long as they receive adequate moisture. Direct sunlight is not recommended, but often times will inspire color with in some varieties. It is important to drain the water out of the crevices. When using Tillandsia for terrariums or art projects they cannot be used with any potting soil or dirt (hence the name Air Plants). Air Plants can be used with sand, sea glass, rocks, pebbles & bark chip. Tillandsia will color up and also spike a bloom that will flower. They also produce pups that create a whole other plant.

watering-dish-garden.jpg

Propagation

Chicks or Pups

Many succulents such as Sempervivums and Echeverias will put off new chicks each year. These chicks can be left on the mother plant to continue growing or removed and planted elsewhere. To remove a chick, simply cut the stem that connects it to the mother plant. Let the chick dry for a few days in a cool, shady area then plant in a well-draining soil. Care for the chick similarly to how would a fully established plant, watering only when the top soil is dry.

Jovibarba heuffelii

Heuffelii do not produce chicks and must be cut apart with a sharp knife, leaving a part of the carrot-looking root on each section. Let cuttings dry in the shade for several days before planting. Water requirements are the same as for Sempervivum.

Sedums and Soft Succulents

Many of the Sedums and Soft Succulents can be propagated by removing and planting offsets or extra stems, or by replanting cuttings or in some cases just leaves.

Echeveria Propagation

Leaf Propagation

Many Soft Succulents can be propagated from their leaves. To remove a leaf, gently twist and pull the leaf off of the stem. Let it sit on a dry surface for a few days and then place on top of soil. Keep the soil damp for the next few weeks as roots and new plants begin to form. As roots begin to form, cover them with soil so they don’t dry out. As the plants begin to grow larger you can move them to a new area and begin caring for them as you would a full plant. It’s best to propagate in a warm shady area.

Read more about this topic at Succulents and Sunshine: How to Propagate Succulents

Pests and Diseases

Mealybugs are the most common pest for succulents, although they generally only affect succulents in containers. Aphids are another common pest, usually appearing in the summer. Mealybugs, aphids, and most other pests, can be treated by spraying the succulent with 70% Isopropyl alcohol or an insecticidal soap. Be sure to get in between the leaves and near the stem as bugs tend to hide in the crevices. It may take several applications to completely get rid of all the bugs.

Read more about this topic at Succulents and Sunshine: Treating Mealybug Infested Succulents

Recommended Books

These e-books by Cassidy Tuttle of Succulents and Sunshine are excellent, affordable, and easy-to-read primers for succulent care and propagation tips. Click for more info:

a-quick-and-simple-way-to-learn-the-basics-about-growing-succulents-.jpg learn-how-to-grow-healthy-succulents-indoors-.jpg the-secrets-to-propagating-succulents-successfully-.jpg find-out-everything-you-need-to-know-about-watering-succulents-.jpg

Green Wall Guide

Our nursery created a beautiful living green wall for a flower show using succulent plants. We documented the process and created a brief guide showing how to create a green wall with succulents. Click here to see the guide.