Spreading dogbane
Apocynum androsaemifolium · Apocynaceae
The gardener's calendar
Ideal time to plant spreading dogbane: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Flowering
- June to August, pale pink to white flowers
- Mature size
- 30 to 60 cm tall
- Growth
- Moderate to fast
- Hardiness
- Very hardy, down to -20 °C
- Origin
- Eastern North America
- Soil type
- Well-drained, tolerates poor soils
- Exposure
- Sun to part shade
Care
Watering
Water moderately during the growing season, allowing the soil to dry slightly between waterings. Once established, this plant tolerates drought well and requires only occasional watering in summer. Reduce watering drastically in autumn and winter.
Exposure
Choose a location in full sun to part shade for generous flowering. This plant tolerates shaded spots but will flower less abundantly. It appreciates good indirect light.
Soil
Apocynum adapts to most well-drained soils. It tolerates poor and rocky soils, as well as dry terrain once established. Avoid permanent waterlogging which promotes root rot.
Pruning and maintenance
Light pruning in spring before growth resumes helps maintain a compact form. Remove dead or damaged stems. This plant self-seeds readily: deadhead spent flowers if you wish to limit natural seeding.
Fertilization
Moderate balanced fertilizer in spring is more than sufficient. Apocynum doesn't require high fertility and thrives in poor soils. Excess nitrogen promotes foliage at the expense of flowering.
Diseases and pests
Very hardy and not susceptible to common diseases. Watch for aphids in spring, which can colonize young shoots. Good drainage prevents fungal rot. No major problems reported under normal conditions.
Did you know?
Apocynum androsemifolium owes its name to its characteristic milky secretion (latex) and its small pink bell-shaped flowers. Long ago, Native Americans used the roots to prepare remedies, while European naturalists introduced it in the 18th century as a botanical curiosity. Its scientific name refers to androseme (another plant), due to the similarity of its leaves.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.