It is true that plants should not be transplanted if possible, as this process is associated with considerable stress for them. Sometimes, however, such a measure is unavoidable, especially if a delphinium that has grown too large is to be divided. As a rule, all Delphinium varieties tolerate transplanting very well.
Before you transplant your delphinium, you should cut it back
The best time to transplant
Larkspur is a typical summer bloomer and is therefore best transplanted either in early spring or after pruning in autumn. If possible, transplanting in autumn is preferable so that the plant can grow in the new location in peace. In the spring, the delphinium needs its energy to sprout new shoots and leaves, as well as to form flowers, and can therefore quickly be overwhelmed with the task of developing new roots.
Divide delphiniums at the same time
Delphinium is relatively easy to propagate by dividing, although this method is the best way to propagate, especially for tall, perennial varieties.
Transplant delphiniums - Here's how
Larkspur can be transplanted in spring as soon as the ground is frost-free. In autumn, it is best to wait a few days until after pruning before doing this. Choose a location that is as sunny as possible with loose, nutrient-rich and moist soil. If necessary, the soil should be improved by adding compost and/or humus soil and gravel.
Step-by-step instructions for transplanting delphiniums
- First of all, dig a sufficiently large planting hole at the new location.
- This should be about twice the circumference of the plant's root ball.
- Mix the excavation thoroughly with compost and some gravel.
- Pour plenty of water into the planting hole.
- Now loosen the soil around the delphinium to be transplanted.
- Cut the root ball all the way around with a spade.
- Choose the largest possible radius.
- Now carefully lift the plant out with the digging fork.
- Carefully remove any attached soil, but leave some old soil on the plant.
- Now carry out the division if necessary.
- Use the delphinium at the new location.
- Water the plant well.
- Mulch the root area to provide the "shady feet" preferred by delphiniums.
tips and tricks
Experienced gardeners always put a little of the soil from the old location in the new planting hole when transplanting. This measure should make it easier for the plant to grow.