Thompson & Morgan

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Sweet Potato 'Carolina Ruby'

Ipomoea batatas

Tender Tuber

In trials over the past 2 years, Sweet Potato 'Carolina Ruby' has shown improved vigour and more reliability in producing a crop of sweet potato tubers than 'Georgia Jet'. Tubers have a bright, ruby-red skin with a deliciously rich-flavoured orange flesh and are superb for baking, wedges and mash. This increasingly popular vegetable is well worth trying outdoors in milder areas. In colder areas they make excellent crops for a glasshouse or polytunnel. Spread: up to 3m (9').

Useful links:

How to grow sweet potatoes

Ideal For:
patio, kitchen garden, greenhouse
Flowering Period:
June, July, August, September
full sun
    • 6 deep root premium plugs

    • Despatch:
    • £12.99
    • Out of stock
    • 12 deep root premium plugs

    • Despatch:
    • £19.99
    • Out of stock

Gradually acclimatise sweet potato plug plants to outdoor conditions over 7-10 days prior to planting directly outside once all risk of frost has passed. Sweet potatoes require high temperatures of 24-26°C (74-78°F). Planting them through black plastic will provide extra warmth in cooler climates. When growing sweet potato in particularly cold areas they are best grown in greenhouse borders or under cloches.

Plant sweet potatoes 30cm (12") apart, leaving 75cm (30") between rows. Grow sweet potatoes in rich fertile, light sandy well drained soil. They prefer an acid or neutral soil in full sun. Prepare the soil in early spring by adding plenty of well rotted manure or garden compost to the soil to improve its structure and fertility. Water generously after planting.

Water sweet potato plants regularly and hoe between plants to prevent weeds from establishing. Provide a thick mulch of organic matter around the base of the plants to help conserve moisture and reduce weed growth. Spread the stems out around the plant and cut back to the growing tips to encourage more lateral stems to develop. Harvest sweet potatoes in late summer approximately 12 to 16 weeks after planting, when the foliage begins to turn yellow and die back.

Culinary note: Culinary uses of sweet potato are similar to potatoes - boil, steam, bake, fry, mash or batter fry as 'tempura'. The leaves and tips of young shoots can be cooked as a spinach substitute.

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

  1. not good

    By marie shellard 06-12-2015

    produced incredibly small and unpleasant tasting sweet potato. also bought Beaugard which worked well, but these were awful and had been treated exactly he same :(


    Thank you for your review. I am sorry to learn of your disappointment. I will of course pass your comments along for review.

  2. What's going on?

    By jane Finch 28-05-2014

    Ordered these back at the end of March. Now end of May and no sign of my plants. Not sure what if any crop I'll get if they do arrive now. Any email enquiry gets a rubbish auto reply about how the order update system is being revamped, but won't give me any details on when my plants could arrive.


    Thank you for your review. I am very sorry to hear of your disappointment with your recent purchase. Our Customer care team are working tremendously hard to resolve all as quickly as possible. I am very sorry for any inconvenience this has caused.

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