Hollyhock (Althaea rosa) is a towering biennial ornamental plant. It grows tall vertical stems covered by big, eye-catching funnel flowers in summer. The blossoms open sequentially from bottom to top of the stalk, creating a striking vertical landscape. Once established, it can self-sow gently and return year after year. It prefers full sun and tolerates poor soil, but good drainage is essential to avoid root rot. Plant in sunny spots; space plants apart to improve air flow and reduce leaf rust risk. Hollyhock works perfectly as background planting for mixed flower beds.
It fits USDA hardiness zones 2 to 9. It is cold hardy and can survive freezing winters. It grows actively in warm summer and forms basal leaf rosettes in the first year, blooming in the second season.
Ornamental Value: Tall stems and stacked large flowers create stunning vertical accents. Great for cottage gardens, fence lines and backyard border landscaping. Ecological Value: Summer blossoms attract bees, butterflies and hummingbirds. Practical Value: Low maintenance, drought tolerant once rooted, capable of self-seeding for continuous natural display.
Store unused seeds in sealed, cool, dry and ventilated space. Keep away from high temperature and humid air. Damp conditions trigger mildew and reduce seed vitality. Seeds maintain good activity for up to 12 months under proper preservation.
Pack seeds with moisture-proof breathable packaging materials. Avoid heavy squeezing and crushing during transportation. Prevent rain soaking and high-temperature exposure. Keep the package dry and intact to guarantee seed activity.
Selected plump high-quality hollyhock seeds with stable germination rate. Tall cold-hardy biennial flowers, ideal for cottage garden, fence border and natural landscape planting.
Cottage garden planting, fence and wall landscaping, mixed flower bed background, wild natural garden, pollinator garden.
Q: Is hollyhock biennial? A: Yes, it usually grows leaves in the first year and blooms in the second year. It can self-sow for continuous growth. Q: Does hollyhock need full sun? A: It performs best under full sun. Partial shade is acceptable but will reduce bloom quantity. Q: What is the main disease for hollyhock? A: Hollyhock rust. Enough spacing and good ventilation help prevent this leaf disease. Q: When to sow hollyhock seeds? A: Spring or autumn sowing is available. Autumn sowing brings earlier blooms in next summer.
