Thelocactus
Thelocactusflavus

Synonym:Thelocactus conothelos subsp. flavus

Synonym:Thelocactus panarottoanus

Synonym:Thelocactus longispinus

Synonym:Thelocactus tulensis var. rinconadensis

Category
Perennials
Cactus and Succulents

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage

Foliage Color

Height
6-12 in. (15-30 cm)

Spacing
6-9 in. (15-22 cm)

Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)

Where to Grow
Can be grown as an annual

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
Pale Yellow
Bright Yellow

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting
Allow unblemished fruit to ripen; clean and dry seeds
Properly cleaned, seed can be successfully stored