Thompson & Morgan

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Plum 'Opal'

Prunus domestica

Hardy Tree

 Customer Rating

Plum 'Opal' is one of the most reliable garden varieties, and is suitable for growing throughout the country. Slightly earlier to crop than 'Victoria', this dessert plum produces a heavy crop of excellent quality, small, yellow skinned fruits with an attractive red flush in July and August. The golden flesh easily separates from its stone and has a delicious gage flavour.

Grafted onto a semi-dwarfing rootstock, to produce a compact, productive tree. Plum 'Opal' is partially self-fertile but will produce a better yield if planted with a pollination companion such as Plum 'Victoria'. Height and spread: 2.5m (8'). Rootstock: St. Julien A.

Estimated time to cropping once planted: 2 years.
Estimated time to best yields: 4 years.

Useful links:

How to grow fruit treesFruit rootstock guide

Ideal For:
kitchen garden, wildlife gardens
Flowering Period:
full sun
    • 1 maiden plum tree

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Plant plum trees in any well drained soil in a sheltered, sunny position. Prior to planting, incorporate plenty of well rotted manure or garden compost into the planting hole and drive the stake into the ground to support the tree. Staking after planting may result in damage to the root ball. Plant fruit trees at their original soil level and firm them into the ground. Fasten the tree to the stake using a tree tie, and water well.

Fruit trees do not suffer weed competition well. Keep weeds and grass clear from within a 30cm radius of base of the tree. In spring, while the ground is moist, apply a mulch of well rotted manure or garden compost around the base of the tree, taking care not to mound it up against the stem. This will help to retain moisture throughout the summer. Feed and water plum trees during particularly dry periods.

Care should be taken when pruning plum trees to avoid winter pruning as this leaves plums prone to silver leaf disease. In the first spring after planting, select 3 or 4 well spaced branches on a clear trunk of at least 75cm (29"), and shorten them by two thirds. Remove the central stem to just above the highest of the selected branches. Remove any laterals below the selected branches.

In the following spring, select 2 or 3 sub laterals on each branch and shorten these by half to create a balanced, open framework. Remove any weak or badly placed shoots completely. In future years, plums will require pruning in late spring to remove damaged, badly placed or diseased wood. Thin heavy crops when the fruits reach the size of hazelnuts to prevent the branches from snapping under their weight. Allow one fruit every 7-10cm (3-4") along each stem.

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. No plums on mine

    By Claire McIntosh 28-08-2015

    I was given an Opal as a present nearly 4 yeats ago and as read the above reviews I realise I have only ever got one plum! What am I doing wrong? The tree does suffer from leaf curl and I have a grease trap around the trunk and I spray with Winter wash but to no avail. Should I give up and just dig it up?


    Thank you for your review. I am sorry to learn of your disappointment with your purchase. Most plum trees start to fruit between 3 to 6 years of it's lifespan, so I would suggest to leave it as it is, and please allow some more time for it as I am sure that you will receive full fruiting from your tree within the next two years. I hope this has helped. Please contact us at if you have any further queries.

  2. Well worth waiting for

    By John Breheny 20-08-2015

    It has taken quite a while for this tree to perform, almost 6 years, but this year it was fantastic. Almost 12 kg of fruit. It ripened early than others on our allotment, and the picking time was quite short ( within about 2 - 3 weeks. It has a lovely flavour and made great jam.


    Thank you for taking the time to post your review. I am glad that you are happy with the results of your plants. I hope we can continue to be of service to you in the future.

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