HELIANTHEMUM nummularium ssp. grandiflorum

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HELIANTHEMUM nummularium ssp. grandiflorum

Common Rock Rose
Select Item No. HA054

Available

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



Plant Description

Life Cycle: Perennial
Family: Cistaceae
Special Features: Especially large flowers.
 
Basic Colour: (yellow / gold)
Flower Colour: yellow
Natural Flowering Period: June - September
 
Winter Hardiness Zones: Z4 - Z7
Height with Flowers: 10 cm
Soil Requirements: dry / average
Location:
Usage: for the rock garden
Grams per 1000 seeds: 1.23457 Gram
Seeds per Gram
(does not correspond to the number of plants!):
810
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
5 Gram
Sowing Direction:

(8) These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight. For Alstroemeria we recommend to keep sowing for 3 weeks at approximately +30°C [86°F], then 3 weeks at +5°C [41°F], then at +21°C [70°F].

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