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Sempervivum 'Cobwebs'
Seed Packet

Sempervivum 'Cobwebs'

Sempervivum arachnoideum
These hens and chicks are festooned with fine silver hairs that can only be described as cobwebbing in appearance—so much so that the Greek word "arachne," meaning spider, was use to create its species name, arachnoideum. It will produce bright reddish-pink flowers and is perfect for hot spots in poor soils.
SKU #S1479
$4.00
Details
Approximate Seeds Per Packet
430
Lifecycle
Perennial
Perennial Hardiness Zone
5,
6,
7,
8
Mature Size
3-4" h x 6-8" w
Sun
Full sun
Soil
Regular, well-drained
Season
Spring to fall
Color
Green with red accents and white "cobwebs"
Features
Great for containers
Deer Resistant
Heat or Drought Tolerant
Notable
RHS Award of Garden Merit Winner
SOWING INSTRUCTIONS
Depth:
Surface
Sprout Time:
14-28 days
Starting Indoors:
Start indoors in winter. If there is no germination within 30 days, chill in fridge for 2-4 weeks, then return to warmth.
Starting Outdoors:
Not recommended.
WHEN TO SET OUTSIDE
After last frost.
PLACEMENT & CULTIVATION
Hens and Chicks are deer resistant and will attract bees and butterflies. They are great for rock gardens as well as low-growing borders in especially dry areas, such as stone walls or exposed foundations where it is hot and dry. Works wonders in poor, well-drained soils in full sun. Planted en masse, Sempervivum makes for an interesting landscape feature. Remove spent flower stalks—may take several years to blossom. Each mother plant, or hen, will die off after blooming—remove from garden. Rarely needs dividing, but can be divided spring-early autumn by detaching chicks from the mother plant.
Final Spacing:
6-12"
Water Requirements:
Low Water Use
Watering Details:
Barely water except in extended drought conditions.
Soil pH:
Not particular about soil pH.
Fertilizer:
Do not fertilize.
Diseases & Pests:
Aphids may damage these plants and can be smothered with insecticidal soap. Avoid root rots by not overwatering.