PENSTEMON x mexicale 'Sunburst Colours'

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PENSTEMON x mexicale 'Sunburst Colours'

Mexican Beardtongue
Select Item No. PA237

Available

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



Plant Description

Life Cycle: Perennial
Family: Scrophulariaceae
Origin: Complex hybrid between Mexican and American species
Special Features: Brilliant flower colours, abundant flowering, healthy foliage. Also available in ruby red ('Sunburst Ruby') and purple ('Sunburst Amethyst'). The Sunburst series are great for retail sales and landscape use - rock garden, planters, or sweeping drifts in the border.
Historical: Introduced by JELITTO PERENNIAL SEEDS in 2010.
 
Basic Colour: (mixture)
Flower Colour: mixture of pink, red, lavender to purple, most with white eyes
Natural Flowering Period: June - September
Flowering: First year flowering
 
Winter Hardiness Zones: Z5 - Z8
Foliage: narrow, glossy
Growth Habit: erect
Height with Flowers: 45 cm
Spacing between Plants: 50 cm
Soil Requirements: well-drained / average
Location:
Usage: for the rock garden / flowering pot plant
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: 3 - 4 weeks
Transplanting to Potting: 6 - 8 weeks
Cutting back at Transplanting: Cut-back once to keep more compact.
Container Size(s): 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: An obvious place to experiment - following vernalization - would be raising daytime temperatures to 60° - 65°F (15° - 17°C). Provide 16 hours of continuous lighting. During the short days of winter, provide a night interruption lighting of 4 hours between 10:00 p.m. and 2:00 a.m.
Fertilizer: Medium (150-200 ppm)
Jelitto · Seeds of more than 3700 different species and varieties

 

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