Hollyhock is a tall, short-lived, herbaceous perennial or biennial native to western Asia.
In summer (or as early as mid-spring in mild winter climates), clumps of large, rough, heart-shaped leaves give rise to stately, leafy stalks lined with showy rounded blooms. The flowers attract butterflies and bees.
These double group plants have fully double flowers and are relatively long lived.
Hollyhocks thrive in full sun and moderately fertile well drained soil. Cut back spent flower stalks to encourage further bloom, or leave them to reseed. This old-fashioned flower makes an excellent addition to cottage gardens and mixed borders. Plants often require staking. Watch for rust, Japanese beetles, and powdery mildew.
Info source: Learn2Grow.com
Genus - Alcea
Species - Rosea
Variety - Double Mix
Common name - Hollyhock
Pre-Treatment - Not-required
Hardiness zones - 2 - 9
Height - 1,50 - 2 m
Spread - 0,50 m
Plant type - Biennial flower
Exposure - Full Sun
Growth rate - Fast
Soil PH - Acidic, Neutral, Alkaline
Soil type - Rich, porous, loose
Water requirements - Average Water
Landscape uses - Feature Plant, Mixed Border
Bloom season - July - September
Leaf / Flower color - Light Green / White, Yellow, Red, Pink, Rose, Peach, Plum
Sow in pots or dishes from April to June and put in a cold frame.
Do not cover or cover lightly, as light aids germination.
Days to emergence: 10 to 14.
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