1: Sand Dollar Cactus ‘Astrophytum asterias’

Bloom Season: Late spring, Early summer
Flower Color: Dark pinkishred, Orangered, purple winered
Growth Rate: Slow
Hardiness Zone: 9, 10, 11
Mature Size: 12 in. tall, 12 in. wide
Plant Type: Perennial succulent, cactus
Resistance: Extremely drought-tolerant, Deer resistance, heat resistant
Sun Exposure: Full sun, partial shade
Watering Needs: Low

2: Bishop’s Cap Cactus – Astrophytum myriostigma

Bloom Season: Summer
Flower Color: Pale yellow, golden, white
Growth Rate: Slow
Hardiness Zone: 10, 11
Mature Size: 40 in. tall, 8 in. wide
Plant Type: Flowering plant, Cactus
Resistance: Extremely drought-tolerant, mild frost tolerant, deer resistance
Sun Exposure: Full sun, Partial shade
Watering Needs: Low

3: Astrophytum capricorne goats horns

Bloom Season: Summer
Flower Color: Bright yellow (with red centre)
Growth Rate: Fast
Hardiness Zone: 10, 11
Mature Size: 18 in. tall, 4 in. wide
Plant Type: Cactus, Flowering plant
Resistance: Extremely drought-tolerant, deer resistance, frost resistant
Sun Exposure: Full sun, partial shade
Watering Needs: Deep irrigation (Once a month during growing season)

4: Astrophytum onzuka

Bloom Season: Spring
Flower Color: Magenta petals
Growth Rate: Fast growth
Hardiness Zone: 10a to 11b
Mature Size: 8 in
Resistance: 12 c
Sun Exposure: Sunny/midshade

5: Astrophytum myriostigma var. nudum

Bloom Season: Spring, summer
Flower Color: Paleyellow, Golden
Growth Rate: Slow
Hardiness Zone: 9 11 (USDA)
Mature Size: 2 in. tall, 8 in. wide
Plant Type: Flowering plant, Cactus
Resistance: Extremely drought-tolerant, mild frost resistance, deer resistant
Sun Exposure: Full sun, partial shade
Watering Needs: Low

6: Monk’s Hood – Astrophytum ornatum

Bloom Season: Between spring Summer
Flower Color: Golden yellow
Growth Rate: Slow
Hardiness Zone: 9, 10
Mature Size: 1220 in tall
Plant Type: Perennial cactus
Resistance: Extremely drought-tolerant, frost tolerant
Sun Exposure: Full sun, lightshade
Watering Needs: Moderate

7: Astrophytum asterias Superkabuto

Bloom Season: Spring
Flower Color: Yellow
Growth Rate: Slow growth
Hardiness Zone: 9a to 11b
Mature Size: 2.5–6 cm
Resistance: 5° C
Sun Exposure: Light shade to full sun

8: Astrophytum myriostigma Fukuryu

Bloom Season: Summer
Flower Color: Yellow
Growth Rate: Slow
Hardiness Zone: 9, 10, 11
Mature Size: 12 in. tall, 6 in. wide
Plant Type: Cactus
Resistance: Extremely drought-tolerant, heat resistant, pest resistance, disease resistant
Sun Exposure: Full sun, partial shade
Watering Needs: Low