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'Giant Single' Sunflower Seeds | By Plant Theory

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PL60000
£1.99
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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 - May
Sow Outdoors March - May
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.

Click Here To Read More

Seeds Jargon

  • 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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About your plant

Our perennials and alpines are lovingly grown by our trusted nursery, based in England. Once ready, each flourishing plant will be dispatched directly to your home.

Packaging

Sustainability is one of our priorities, and as such, our perennials and alpines are delivered in environmentally friendly packaging. Aside from being recyclable, they will additionally keep them nice and secure on their journey.
How your order will arrive
Please see our below guidance on your perennial or alpine's care:

  • Watering: During your perennial or alpine's first growing season, you should provide them with frequent waterings. Try to also avoid wetting the foliage to reduce the risk of disease.
  • Deadheading: To promote a long flowering period, you should deadhead any flowers that appear spent. Simply rescind each flower at their base, taking care to not cut other parts of the plant.
  • Dividing: To really flourish, your perennials can be divided every three to four years. They can be divided when they begin to show less flowers, or appear less healthy in the middle. Make sure to only do so when they aren't currently flowering.
More Information
Deciduous Or Evergreen Deciduous
Flower Colour White
Flowering Month February
Is Collection/Mix? No
Needs Ericaceous Compost? No
Type Sunflower
Supplied As Seed Packet
Sow Indoors Month March, April, May
Sow Outdoors Month March, April, May, June
Type Seeds
Latin Name Sunflower
Sale Category Seeds
Spring Checklist Seeds

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