Our helianthus annuus Giant Sunflower single seeds are a fun favourite with children. Easy and quick to grow with huge heads on giant stems, they make for a fun competition to see who can grow the tallest sunflower. Sunflowers add warmth and vibrancy to any outdoors space, and attract a wealth of bees, butterflies, and other beneficial insects to your garden. The spent heads can also be used to feed birds during the winter.
Variety Information
| No. Seeds Per Pack | 38 |
| Sow Indoors | March - June |
| Sow Outdoors | March - June |
| Location | Full Sun |
| Flowering Time | June - September |
| Hardiness | Hardy Annual |
Features
Beautiful Giant Golden Flowers
Quick & Easy To Grow
Attracts Bees & Butterflies
Favourite With Children Buying Guide Planting Requirements Planting Guide Plant Theory Planting Essentials
We believe that anyone, regardless of ability can successfully grow their own plants at home, and do so in an eco-friendly and sustainable way.
Everyone should have the chance to experience the benefits that plants bring to our lives, and we have put a lot of effort into making sure that all of our products are easy to grow, even for beginners.
Sustainability is at the heart of our ethos and we have done everything we can to ensure that all of our products are as sustainable as possible, be it our plastic free, fully recyclable packaging, GM free seeds or ethically sourced compost.
Flowers are easy to grow. Below we address some common queries:
- Hardiness: these hardy annuals have good resistance to frost.
- Planting In Pots: suitable for planting in pots.
- Position: plant in full sun for best results.
- Soil Types: plant in pre-watered finely prepared soil for optimal growth.
Germination Requirements: ideally temperature should be 21-30°C.
Planting Distance (Seed Tray): sow 1.5cm (1/2in) deep in small pots of compost (or equivalent distance in a seed tray).
Planting Distance (Ground): sow 2 seeds together every 45cm (18in).
Soil Preparation: remove any stones from the soil and dig in some fertilizer.
Thinning: if two seedlings grow from one hole, thin out the weaker plant or transport if desired.
Pest Control: use a pesticide spray to protect from pests.
Watering Requirements: water regularly, particularly in dry weather.
For a more detailed guide please read our blog below.
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- F1 Hybrids: hybrid seeds are produced from two specially selected varieties that are kept in isolation. As they are produced from only two plants, seeds are almost identical genetically.
- Open Pollinated: open pollinated plants aren't isolated from other varieties, so are more genetically diverse.
- Heirloom: heirloom seeds are historic, some going back to Victorian times, others more recent. Heirloom varieties can be good or bad, depending on how careful the breeder is to maintain genetic similarity.
Hybrids vs Open Pollinated As hybrids are produced from two specially selected varieties, the quality is more consistent, with a higher germination rate and improved cropping. But, as they require time, resources and know-how to create, they come to the market at a higher cost. They are also genetically unstable, and so if you keep the seeds from the resultant crop, performance is usually poor. Open Pollinated seeds are highly diverse and have often been grown for successfully for decades. Seeds from the resultant crop are usually perform well.
Annual, Biennial and Perennial Annual plants complete their life cycle within a year, biennials in two years (usually only flowering in the second year) and perennials can live on indefinitely.
Hardy, Half-Hardy and Tender Hardy and half-hardy plants can survive a light frost, but the latter are best moved indoors during periods of bad weather. Tender plants must be kept indoors, until after the last frost.
We believe that anyone, regardless of ability can successfully grow their own plants at home, and do so in an eco-friendly and sustainable way.
Everyone should have the chance to experience the benefits that plants bring to our lives, and we have put a lot of effort into making sure that all of our products are easy to grow, even for beginners.
Sustainability is at the heart of our ethos and we have done everything we can to ensure that all of our products are as sustainable as possible, be it our plastic free, fully recyclable packaging, GM free seeds or ethically sourced compost.
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