TROLLIUS europaeus f. compactus 'Lemon Supreme'

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TROLLIUS europaeus f. compactus 'Lemon Supreme'

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Select Item No. TA257

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1 Portion contains 20-250 seeds depending on value and size.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Ranunculaceae
Origin: Europe to Western Siberia: damp grassland, edges of ponds, riverbanks.
Special Features: An abundance of lemon yellow, bowl-shaped blossoms on a much shorter and compact plant. Rich and large flowering, very vigorous, reliable flowering the first spring after sowing year.
Historical: Introduced by JELITTO PERENNIAL SEEDS in 2010.
 
Basic Colour: (yellow / gold)
Flower Colour: Lemon yellow
Natural Flowering Period: May - June
Flowering: First year flowering
 
Winter Hardiness Zones: Z4 - Z7
Foliage: deeply cut 3-5-parted, dentate, deep green
Growth Habit: compact / vigorous
Height with Flowers: 30 cm
Spacing between Plants: 24 cm
Soil Requirements: moist / cool
Location:
Usage: for the rock garden / flowering pot plant
Portion weight: 0.15 Gram
Grams per 1000 seeds: 0.76923 Gram
Seeds per Gram
(does not correspond to the number of plants!):
1300
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
3 Gram
Sowing Rates/Trays: 3 - 4 per cell
Plug tray recommended size(s): open flats / 72 / 128
Sowing Direction:

(2) Most species of the Ranunculus-family need lower temperatures during the cooling-period – about –5°C [23°F]. In other respects follow the directions in 1. above. The reason is probably the freezing point of these seeds, which is at –7°C [19°F], while most other seeds freeze at –5°C [23°F].

(1) Cold-germinators are still referred to as frost-germinators, although this isn’t quite correct. The sowing must be kept warm (about +18 to +22°C) [about 64 to 72°F] and moist for the first 2–4 weeks. After this period the sowing must be kept at a cold temperature (between –4 and +4°C) [between 25 and 39°F] for another 4–6 weeks. Colder temperatures of –5°C [23°F] are only advantageous for most species of the Ranunculus family. It is not so important if the temperature is higher or lower during the cooling period, but the cooling period has to be prolonged because the synthesis of the germination inducer, hormon-like acid, slows down or comes to a standstill.
It is beneficial to cover the sowing with snow during the cooling-period. The temperature below it usually keeps in the optimum range of –4 to 0°C [25 to 32°F]. The sowing is kept moist, and the melting snow helps to destroy the shell, which is advantageous for the germinating seedling. After this cooling-period the sowing may not be immediately exposed to high temperatures. The most effective temperatures are between +5 to +12°C [41 to 54°F], even if germination has started. The best location for this sowing, even in March, April and May, is the open field, the cold frame or a cold greenhouse.

Best Sowing Date
(northern Hemisphere, Field condition):
late autumn - early spring
Sowing to Germination: 8 - 10 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2")
Fertilizer: Medium (150-200 ppm)
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