Primrose Jasmine/Jasminum mesnyi

The Primrose Jasmine looks best if grown against a conservatory wall, where the rather lax growth can spread at will. Although not as richly-scented as the closely-related Chinese Jasmine, it is a worthy houseplant for its trio of large evergreen leaves and for the often double blooms of bright golden yellow, which appear in early Spring through to Summer .

This plant will withstand temperatures as low as 0°C (32°F), with a preferred Winter temperature of 16°C (61°F): provide plenty of ventilation in Winter to keep the plant cool. In Summer, warmth is needed to ripen new growth: day temperatures to 22°C (72°F) are suitable if adequately ventilated. In warm Summers, place outside in a sunny spot.

Full sun is needed for the best flowers: when in flower, bright, indirect light is suitable, but to ensure that the plant blooms well the following year, place in full sun in Summer to ripen the new wood.

Let the compost surface dry between thorough waterings: water well in Summer with lime-free water.

If placed outside in Summer, the humidity level should be adequate: if grown indoors, place the pot on a tray of moisture-retentive pellets to increase humidity around the plant. Conservatory-grown plants should be lightly hosed down daily in Summer. At the specified Winter temperatures, humidity should not be a problem.

Feed established plants with a general-purpose fertilizer in Spring; do not feed newly-potted plants until six weeks after repotting.

Repot in early Spring, after flowering, using a free-draining loam- or peat-based compost.

Jasmine flower on the wood produced in the period after flowering. If you prune at any time other than just after flowering, you may trim off the following season’s flowers. As soon as the plant has finished flowering, cut the flowered shoots back to a strong bud, about 5cm (2in) from the base of the shoot. Retrain the plant if necessary.

As the plant makes new growth, pinch-out the shoots to encourage branching. Very large plants can be trimmed back hard in early Spring.


Aphids may attack soft growth caused by overheated conditions: treat with a proprietary insecticide.

Flowers will shrivel and drop if temperatures are too high.

10. August 2013 by admin
Categories: Tips and Advice | Comments Off on Primrose Jasmine/Jasminum mesnyi


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