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Zinnia Seeds - Giant Cactus Flowered

Botanical - Zinnia elegans


Seed Count:
120 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Current Stock:
Out of stock
Price £1.86

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Sorry but this item is currently unavailable.

Please check back at a later stage.

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120 Seeds.

Other Names - Youth and Old Age…

Zinnia Giant Cactus Flowered produces large semi-double flower heads with long attractive narrow pointed spiky petals in a broad range of attractive shades.

  • A favourite by many.
  • Produces large spiky flowers in a wide range of luscious shades.
  • Productive all through the summer and autumn months.

Suitable For - Bedding plants, flowers for cutting, containers, cottage gardens, borders

Sowing Months - March - May

Flowering Months - July - September

Soil Preperation

To help with moisture retention and fertility add a good amount of well rotted manure or compost to the soil. If the soil is a heavy clay add some gritty sand to help with drainage. Remove weeds from the area.

General Information
Habit Annual Soil type Humus rich, fertile, well drained soil
Type   Distance between plants 25 - 30 cm
Position Full sun Sowing depth 3 - 5 mm
Average height 60 - 80 cm Germination Temperature 14 to 20℃
Average spread 30 cm Days to germination 7 - 21 days
Hardiness Half hardy RHS Bee friendly No
Soil Ph   RHS Award winner No

Sowing Guide

Early Sowing/Module Sowing

Sow the seeds in March - April on the surface of damp compost in trays, modules or pots.
Cover with a thin layer of vermiculite or compost.
Place in a clear polythene bag and seal or if preferred place in a propagator. Germinate at the temperature suggested above. Do not exclude light as the seeds need light to germinate.
Once germination has started remove from the propagator or bag and place in a cooler but not cold location. Protect from frost and direct exposure to hot sun.
When the seedlings are large enough to handle carefully prick out into 7 - 10 cm pots. (Avoid as much damage to the roots as possible).
Grow on in frost free conditions, a greenhouse or cold frame is ideal until all risk of frost has passed.
Harden off the plants over 10 - 15 days before planting out at the distance suggested above.

Direct Sowing

In May sow the seeds thinly outdoors, where the plants are to flower and all risk of frost has passed, in a well prepared seed bed in rows 30 cm apart at the depth of 3 - 5 mm. The soil should be a fine tilth.
Water the newly sown seeds well.
When the seedlings are large enough to handle thin to 30 cm apart.

Growing On

Water the young plants well until established.
In the early part of the growing season the plants will benefit from having some slow release balanced fertilizer adding.
Established plants will need watering regularly in dry conditions.


Dead-head spent flowers to prolong the flowering season.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

Returns & Refunds

We like to be transparent with our customers, here are your rights as a consumer -

The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

We want you to be 100% delighted with your purchase.

If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.