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One of my favourite perennials, hollyhocks, adds stunning vertical interest with their tall spikes of colourful blooms. But when is the best time to plant them in the UK? Let’s dive into it.
Quick Answer
The best time to plant hollyhocks in the UK is between March and May. This allows them to establish before blooming in the summer.
Understanding Hollyhocks
Hollyhocks are biennials, which means they typically grow foliage in their first year and flower in the second. However, with the right care, they can bloom in their first year. They thrive in sunny positions with well-drained soil, making them ideal for many UK gardens, including those in the Midlands.
Best Planting Times for Hollyhocks
The key to successful hollyhock planting is timing. Planting at the right time ensures strong growth and a stunning display of flowers.
Spring Planting
For most UK regions, including Staffordshire, the ideal planting period is spring, from March to May. This timing allows the plants to establish roots and foliage before the flowering season begins in summer.
Autumn Planting
If you miss the spring window, you can also plant hollyhocks in early autumn. This gives them time to settle in before winter arrives, ready to grow robustly as temperatures warm again.
Planting Techniques and Tips
- Choose a sunny spot with well-drained soil.
- Space plants about 60 cm apart to allow for growth.
- Water regularly, especially during dry spells in the Midlands.
Monthly Planting Calendar
| Month | Action | Notes |
|---|---|---|
| March | Begin planting | Ideal start for spring planting |
| April | Continue planting | Ensure they are well-watered |
| May | Finish planting | Last chance for spring planting |
| September | Plant for next year | Start of autumn planting |
Frequently Asked Questions
Can hollyhocks grow in partial shade?
While hollyhocks prefer full sun, they can tolerate partial shade. However, flower production might be reduced.
How do I prevent rust on hollyhocks?
Rust can be a problem with hollyhocks. Ensure good air circulation and remove affected leaves promptly. A fungicide can also help if rust persists.
Are hollyhocks suitable for containers?
Yes, they can grow in large containers, but they will need more frequent watering and feeding. Ensure the container has good drainage.