Are Sunflowers in Season? (UK Guide)
Yes — sunflowers are in season, but only during specific months of the year. Their season depends on whether you’re talking about flowers in bloom, cut sunflowers, or sunflowers growing in gardens.
Keter Manor Outdoor Apex Double Door Garden Storage Shed (6 x 8ft)
A durable and stylish beige and brown garden storage shed perfect for storing garden tools, equipment, bikes, and outdoor essentials. Weather-resistant, low maintenance, and ideal for any garden or allotment setup.
Vegetable Plants & Seedlings
Browse Plants
All-Purpose Compost & Soil Improvers
View Compost
Plant Feed & Fertiliser for Strong Growth
Shop Fertiliser
⭐ Recommended Products — Sunflowers & Sunflower Seeds
Sunflowers are bright, cheerful plants that are easy to grow from seed and great for gardens, borders, or kids’ projects.
• Sunflower Seed Collection (Multiple Varieties)
Includes popular types like classic tall giants, dwarf/multi-head varieties, and colourful mixes — great for diverse planting.
👉 Click here to see top options
• Sunflower Seed Starter Kit (Trays + Labels + Compost)
A complete beginner-friendly kit with everything you need to sow sunflower seeds indoors or in a cold frame before planting out.
👉 Click here to see top options
• Sunflower Support Stakes & Twine Set
Tall varieties often need support — this kit helps keep stems upright as they grow toward the sun.
👉 Click here to see top options
• Bird & Wildlife Sunflower Seed Mix
Also great for feeding wild birds later in the season or sowing separate patches to attract wildlife into your garden.
👉 Click here to see top options
• Grow Lights / Heat Mat (Optional for Early Sowing)
Boost germination and early growth if you’re starting seeds indoors before outdoor planting is warm enough.
👉 Click here to see top options
This guide explains when sunflowers are in season in the UK.
🌻 When Are Sunflowers in Season in the UK?
Sunflowers are in season from summer to early autumn.
Typical sunflower season:
- July to September – peak season
- Late June – early flowers may appear
- October – season usually ends
During this time, sunflowers are at their best for gardens, allotments, and cut flowers.
🌼 Sunflowers in Gardens & Allotments
Sunflowers grown from seed usually:
- Are sown in spring
- Grow through early summer
- Flower from mid-summer onwards
Garden sunflowers are most impressive in July and August, when plants are fully grown and in full bloom.
💐 Are Cut Sunflowers in Season?
Yes. Cut sunflowers are in season during summer, especially:
- July
- August
- September
Outside of these months, cut sunflowers may still be available in shops, but they are often:
- Imported
- Greenhouse-grown
- Less fresh or more expensive
Buying in season gives better quality and value.
🌱 Are Sunflower Seeds in Season?
Sunflower seeds are:
- Available all year round
- Sown in spring
- Harvested in late summer to autumn
While seeds can be bought anytime, the plants themselves are only seasonal.
❄️ Are Sunflowers in Season in Winter?
No. Sunflowers are not in season during winter in the UK.
- Outdoor plants die back after autumn
- Cut sunflowers are not naturally available
- Only dried, artificial, or imported flowers are seen
Sunflowers are a true summer flower.
🌻 Final Thoughts
Sunflowers are firmly in season during summer, with peak availability from July to September in the UK. This is the best time to enjoy them in gardens, allotments, and as fresh cut flowers.
If you see sunflowers outside this window, they’re likely imported or not freshly grown — nothing beats enjoying them in their natural season.