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botanical name:
Convolvulus tricolor 'Blue Ensign'
Convolvulus tricolor 'Blue Ensign' © Deeproot Plant Base
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synonyms:  Convolvulus tricolor 'Ensign Blue', Convolvulus tricolor 'Royal Ensign'
family:  Convolvulaceae
characteristics: annual/biennial, evergreen, ground-cover
height: 0.20m
width: 0.30m
growth rate: medium
growth habit: semi-prostrate
leaf colour: green
flower colour: blue
main season: Summer
poison symbol poisonous or irritant
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: any
minimum temp: -10°C
USDA zone: 8 to 11
Hardy annual, low spreading, scrambling habit and in summer freely producing deep blue flowers with white and yellow centres. Popular variety.

Warm sheltered position in full sun and a very well drained soil. Easy to grow. Non-invasive. May sometimes be perennial in mild climates.

From seed sown in early spring at 21 to 27°Ct. Soaking the seed for 2 hours in cold water before sowing helps germination, which usually takes 5 to 14 days. Transplant when seedlings are large enough to handle. Can also be sown in-situ in late spring.

Excellent ground cover in sunny borders and also good for containers.

other notes:
Seeds are very poisonous.
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