How to Grow Succulents and Cacti

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Succulents and Cacti

Cactaceae (cacti), various families (succulents)

succulent

Succulents and cacti are drought-tolerant plants with fleshy leaves or stems that store water, allowing them to thrive in arid conditions. Cacti are a specialized subset of succulents native primarily to the Americas, characterized by spines and areoles (modified branches). Both are popular ornamental plants valued for their unique forms, low maintenance requirements, and ability to grow indoors.

Looking for a specific variety?

Jade Plant Echeveria elegans Aloe vera Prickly Pear String of Pearls Haworthia fasciata

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Example Succulents and Cacti timeline · Pittsburgh, PA (Zone 6b)

Plant Succulents and Cacti
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Succulents and Cacti
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Succulents and Cacti dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; most cacti and succulents require intense light for optimal growth and color. Some tender varieties tolerate partial shade.

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Water: Water deeply but infrequently. Allow soil to dry completely between waterings. In growing season (spring/summer), water every 2-4 weeks. In dormancy (fall/winter), reduce to monthly or less. Overwatering is the primary cause of death.

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Spacing: 3-12 inches depending on mature size; small succulents 3-4 inches apart, large cacti 8-12 inches or more inches

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Days to maturity: Highly variable; small specimens can be decorative within weeks, mature specimens may take 3-10 years

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Planting depth: Plant at soil surface or slightly shallower; do not bury stems. Leave ¼ inch of stem above soil in pots.

Soil

Type: Well-draining cactus/succulent mix, sandy loam, or coarse gritty soil

pH: 6.0-7.0

Amendments:

Perlite or pumice (25-50% by volume) Coarse sand Gravel Bark chips Avoid peat moss and heavy compost

Growing Zones

Find your zone →

Varies by species; hardy cacti and sedums thrive in zones 3-9, while tender succulents prefer zones 9-11. Most can be grown indoors year-round in any zone.

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

Establishment

1-3 weeks

Newly planted cuttings or seedlings with minimal root development. Leaves appear firm and turgid.

Hold off watering for 5-7 days to allow cut ends to callus over and roots to develop. Provide bright indirect light. Keep in warm location (65-75°F).

Vegetative Growth

4-8 weeks (spring and early summer)

Active stem and leaf expansion. Plant develops a dense rosette or branching structure. Color intensifies under bright light.

Water sparingly when soil is completely dry. Provide maximum light. Fertilize monthly with diluted low-nitrogen succulent fertilizer (if desired). Temperatures 60-80°F are ideal.

Flowering

2-8 weeks depending on species

Many cacti and succulents produce colorful blooms. Flowers emerge from areoles (in cacti) or leaf clusters (in other succulents). Bloom duration varies from hours to weeks.

Reduce watering slightly during bloom to concentrate nutrients. Provide full sun for best flowering. Some cacti require a cold dormancy period to trigger blooming. Do not fertilize during flowering.

Dormancy

3-4 months (October-January)

Growth slows dramatically in fall and winter. Leaves may change color, and the plant enters a resting phase. Minimal water uptake occurs.

Reduce watering significantly; water only if soil is bone dry after extended drought. Stop fertilizing. Keep cool (50-60°F for most species) to maintain dormancy. Provide adequate light even if growth is minimal.

Propagation

3-6 weeks to establish; several months to mature

New plants develop from detached leaves, cuttings, or seeds. Tiny roots and shoots emerge from the propagule.

Allow cuttings to dry 3-7 days before planting. Use well-draining soil. Mist lightly every 3-5 days until roots establish (2-4 weeks). Provide bright indirect light. Do not water heavily until plantlets are established.

Companion Planting

Plan your garden →

Plant with:

Echeveria Sedum Aloe Jade plant African milk tree String of pearls Haworthia Other drought-tolerant plants

Avoid planting near:

High-water plants (ferns, impatiens, hostas) Bog plants Moisture-loving groundcovers Densely planted traditional flower beds

Common Pests

Spray with isopropyl alcohol on a cotton swab or use neem oil. Isolate affected plant. Repeat every 7-10 days as needed.
Remove manually with a brush. Treat with horticultural oil or insecticidal soap. Check regularly for reinfestation.
Increase humidity slightly (mist lightly). Spray with neem oil or insecticidal soap. Ensure good air circulation.
Repot in fresh, dry cactus soil. Remove blackened or mushy roots with sterile knife. Allow to dry completely. Reduce watering frequency.
Remove affected portions with sterile knife. Allow cuts to air dry. Improve air circulation and reduce humidity. Do not overwater.
Spray with water to dislodge. Use insecticidal soap or neem oil if infestation is severe.

Uses

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Edible Fruits and Pads

Culinary

Certain cacti, particularly Opuntia (prickly pear), produce edible fruits and tender young pads (nopales) used in Mexican and Mediterranean cuisine. High in fiber, vitamin C, and antioxidants. [source]

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Aloe Vera Gel

Medicinal

Aloe vera gel is widely used topically to soothe burns, cuts, and skin irritation. Contains polysaccharides and anthraquinones with anti-inflammatory and moisturizing properties. [source]

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Indoor Air Quality

Household

Succulents and cacti release oxygen at night (Crassulacean Acid Metabolism) and absorb carbon dioxide, making them excellent low-maintenance indoor companions for bedrooms and offices. [source]

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Arrangements and Terrariums

Craft

Succulents are ideal for creating living arrangements, succulent gardens, terrariums, and decorative compositions. Their compact growth and diverse colors and textures make them highly versatile for design. [source]

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Pollinator Support

Wildlife

Blooming cacti and succulents provide nectar and pollen for bees, hummingbirds, and butterflies, especially in arid or semi-arid landscapes where other food sources are scarce. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Succulents and cacti are grown for ornamental value rather than harvest. Propagate by carefully detaching healthy leaves or cuttings, allowing cut ends to callus for 3-7 days, then planting in dry cactus mix. Some species produce edible fruits (e.g., prickly pear) that can be harvested when fully ripe and detached carefully using tongs or thick gloves.

Fun Facts

🌱 Cacti and succulents store water in their tissues through a process called Crassulacean Acid Metabolism (CAM), which allows them to thrive in deserts with minimal rainfall—some species can survive over a year without water.
🌱 The largest succulent flower cluster belongs to the Puya raimondii (Andean bromeliad), which can reach 28 feet tall and contains over 8,000 flowers, but the plant dies after flowering.
🌱 Succulents can live and grow from a single detached leaf for months, gradually producing roots and new plantlets—making them one of the easiest plants to propagate without any special equipment.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Full Sun Partial Shade pH

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