Erysimum Winter Joy Plug Plant - Perennial Wallflower

The budlings of Erysimum 'Winter Joy' are planted in pots and flower beds or directly in open ground in a finely prepared and enriched soil. Plant them as soon as possible after receiving them, in September-October. If the planned location is not yet ready or if the conditions are not favourable for planting (heavy rains or too dry soil), you can let them grow in pots for 4 to 6 weeks. At planting or shortly after, you must absolutely pinch the tip of the plant between your thumb and index finger to remove the terminal bud and stimulate branching. It is possible to repeat this operation until mid-October to obtain denser bushes.

In pots and flower beds, use a good well-draining soil for flowering plants (for example with a lot of bark or perlite) and enriched with slow-release fertilizer. The top of the root ball should be level with the soil. Water generously at planting and during the following weeks, as the budlings can dry out quickly. However, be careful of excess water! Make sure to use containers with drainage holes and empty the saucer 10 minutes after watering. Remember to water even during winter if it doesn't rain or if the container is placed in a sheltered location. Do not water during freezing periods.

From 3 weeks after planting and until after flowering, apply a liquid fertilizer for flowering plants 1 to 2 times a week with the watering water, even in winter (as long as watering is necessary). The withered spikes can be cut with scissors to maintain a neat appearance of the plant, but it is not essential, the flowering continues on its own as long as the plant does not lack water. Once the flowering is over, the plants in pots can be replanted in the garden in full sun after being pruned by about 5cm (2in). Be careful with winter humidity, choose a really well-drained soil, as poor conditions will affect its hardiness.