Thompson & Morgan
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Sweet Pea 'Promise'

Lathyrus odoratus

Hardy Annual

Sweet Pea 'Promise' is a particularly fragrant variety, boasting up to 4 large, frilly blooms on each long stem. Bred by Roger Parsons, custodian of a National Collection® of Lathyrus species, this pretty variety is certain to become a show bench favourite. Spectacular in the garden and a lovely cut flower too. Height: 180cm (71"). Spread: 30cm (12").

Useful links:

How to grow sweet peas

Ideal For:
patio, walls and fences, cottage gardens, scented gardens, cut flower garden
Flowering Period:
June, July, August
Sowing Months:
March, April, October
Position:
full sun
    • 1 packet (25 sweet pea seeds)

    •  
    • Despatch: Within 1 days
    • £1.99

Sow sweet pea seeds indoors in October for transplanting outdoors in spring, or direct sow outdoors from March to April.

In autumn, sow 3 seeds per 7.5cm (3") pot at a depth of 1cm (½") in free-draining, seed sowing compost. Place in a propagator or seal container inside a plastic bag at a temperature of 20-25C (68-77F) until germination which takes 10-21 days. Once germinated, grow sweet peas on in cooler conditions, before transferring to a cold frame for overwintering. Spring sowings can be made outdoors directly into drills at a depth of 2.5cm (1"), and a distance of 7.5cm (3") apart. Pinch out the growing points of each stem once the second pair of leaves has opened to encourage bushier growth.

In spring, plant sweet peas outdoors at a distance of 23cm (9") apart in any well drained garden soil in full sun. Train the stems onto a suitable support such as trellis or a free standing climbing frame. Try using our sweet pea support rings to tie the stems to their growing supports while they become established.

Feed and water sweet peas regularly throughout the growing season. When growing sweet peas it is essential to cut the flower stems frequently and deadhead faded blooms to prevent seedpods developing. This will encourage more blooms to be produced and extend the flowering period throughout summer.

Caution: Seeds are harmful if eaten.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above.

Despatch: Within 24 hours applies to orders placed online from Sunday to Thursday. Orders placed online on Friday or Saturday will be despatched on Monday. Please note that for Bank Holiday weekends, orders placed Friday to Sunday will be despatched on Tuesday.

Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.


Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

Reviews
  1. did not germinate

    By Lynn Wallis 14-03-2016

    I followed the instructions to the letter expecting 'show bench winners' but none of the seeds germinated. I have never had such lack of success before.

    Ryan
    16-03-2016

    Thank you for your review. I am sorry to learn of your disappointment with your purchase. If you would like to contact our Customer Care Department at ccare@thompson-morgan.com, one of our agents will be more than happy to look in to this further for you.

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