AUBRIETA x cultorum 'Whitewell Gem'

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AUBRIETA x cultorum 'Whitewell Gem'

Rock Cress
Select Item No. AB226

Available

One Portion is usually sufficient for approx. 50 plants.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Brassicaceae
Special Features: Low-growing mounding habit with large, deep dark purple flowers. Colorful spring groundcover. Honeybees love them, too.
 
Basic Colour: (red / scarlet / purple)
Flower Colour: dark purple
Natural Flowering Period: April - May
 
Winter Hardiness Zones: Z3 - Z8
Foliage: dense clusters of oblong leaves
Growth Habit: stoloniferous / clumping
Height with Flowers: 15 cm
Spacing between Plants: 25 cm
Soil Requirements: well-drained / average
Location:
Characteristics: groundcover
Usage: honey-bee food plant / for the rock garden
Grams per 1000 seeds: 0.43478 Gram
Seeds per Gram
(does not correspond to the number of plants!):
2300
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
1 Gram
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): 128 / 288
Sowing Direction:

(16) See 15 with the exception of germination being slower and more irregular. This poses no problems.

(15) Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Do not cover very small seeds, but tightly press into the earth. Keep in cooler conditions after germination occurs.

Best Sowing Date
(northern Hemisphere, Field condition):
Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2") / 2-3 plugs per 15 cm (6")
Vernalization: There is no current research on vernalization but a prudent recommendation for any perennial would be 6-12 weeks (a few might need 15 weeks!) at an average daily temperature of 40°F (5°C). Exposure to cold may not be necessary for flowering but might improve quality.
Forcing: 8-10 weeks to flower with no supplemental lighting at 65-70°F.(17-21°C).
Fertilizer: Medium (150-200 ppm)
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