The lilac is a robust plant with little maintenance. If you want something more in your garden, you can easily multiply the plant. There are two different ways to do this.
The lilac (limonium) has many advantages. The plants are robust and easy to care for. They also thrive in rather inhospitable locations and impress with their pretty flowers. The propagation also presents no great hurdle for the hobby gardener. There are several ways to multiply sea lavender.
In the following, you will learn how you should proceed and what there is to consider when caring for and cultivating the young plants.
Propagation by sowing - explained step by step
❶ Obtain seeds
❷ Wintering seeds
❸ Prefer seeds
❹ Cover the seed container
❺ Place the seed container in a bright and warm place
❻ Wait for germination
❖ Step 1:
If you already have a lilac, you do not have to buy the seeds, you can easily get them yourself. To do this, leave the flowers on the plant until they dry up in the course of midsummer. Then the seeds can be removed.
" Tip: Usually only one seed can be obtained from the fruit of the lilac.
❖ Step 2:
The seeds must now survive the winter. For this they are kept cool and dry in an airtight container. You can start planting in March. For this, choose a suitable, flat planting bowl or several plant pots. The seeds should swell for about ten hours before planting.
" Tip: Bathing the seeds in chamomile tea is conducive to germination.
❖ Step 3:
The planters are filled with growing soil. The seeds are then spread onto the substrate and covered with a thin layer of soil. To accelerate germination, you can cover the planters with a cover made of glass or plastic film.
" Tip: Ventilate the planters regularly so that no mold develops.
❖ Step 4:
You can now set up the planters at room temperature. A half-shaded spot by the flower window is ideal. Keep the seeds slightly moist. The substrate should not dry out. Irrigation works best with a plant sprayer. Under favorable site conditions, the first cotyledons can appear after just one week. After 14 days at the latest, you will see the first green and thus be certain of the success of your cultivation.
❖ Step 5:
If the seedling gets its first pairs of leaves, the space in the planter will definitely be too small. Select the strongest plants and put them in separate plant pots. The substrate should consist of a peat-sand mixture and be as low in nutrients as possible. So the young plants eagerly form roots and grow up quickly. The separate plant pots remain on the flower window.
What happens to the young plants?
You continue to cultivate the young plants as usual. From mid-May, when frosts are no longer expected, the plants can move outdoors. You have the choice of placing the lilac outdoors or in the bucket.
- Outdoor planting tips
First choose a suitable location. The lilac does not need to be planted in full sun, but still needs at least five to six hours of sunshine a day. The plants place little demands on the soil. A dry and sandy soil is ideal. Soils that are too damp and heavy would damage the young plants and quickly lead to root rot. The plants also cannot tolerate over-fertilized soils." Tip: The lilac needs little fluid. However, young plants should be watered regularly. You can also use tap water for this because the plants appreciate a calcareous soil.
- Tips for planting pots
The planter needs sufficient drainage holes on the bottom of the container so that the liquid does not build up in the planter and waterlogging occurs. Choose the planter sufficiently deep, because the lilac forms a taproot, which digs deep into the ground. The plants regularly need water in the bucket. During the growing season, you can supply the young plants with compost or horn shavings as an organic fertilizer.
Sowing seeds directly - is that possible?
The seeds do not necessarily have to be grown indoors, as just described. You can also try direct sowing.
" Tip: Early plants are stronger and have a growth advantage.
Select the appropriate location and clear the earth of weeds, stones or roots. The soil is loosened up well and finally leveled with a rake. Now draw a groove a few centimeters deep, where you will later insert the seed. The earth is then leveled again and you carefully pour the seeds.
Now wait for the germination and prick the seedlings in place. Only the strongest plants are cultivated further.
" Tip: For example, in the cottage garden, it also looks nice if you sow the seeds not broadly, but accurately.
Propagation by root cuttings - explained step by step
❶ Dig up the plant
❷ Cut off the root
❸ Plant cuttings
❹ Wait for germination
❖ Step 1:
If you already have a large size lilac, it won't harm the plant if you multiply it with root cuttings. For this you have to take the lilac out of the ground completely in spring. The adult mother plant has a well-developed root system. You can now cut off a maximum of one third of this. You should immediately put the mother plant back in the ground and water it, because this intervention naturally means stress for the plant.
❖ Step 2:
Now divide the separated root piece into individual parts. Each segment should be between five and ten centimeters long. When separating from the mother plant, note the side that was facing the plant. This now receives a straight cutting edge. The opposite side is cut diagonally. The new roots will be formed here later.
" Tip: Mark the direction of the individual segments.
❖ Step 3:
Plant pots can now be filled with soil. Each root cut receives its own plant pot. There it is potted with the bevel cut edge down. Spread a thin layer of sand over the substrate.
Caution: The root cuttings are not watered at this stage of the propagation.
❖ Step 4:
The planters are placed cool, at about 15 degrees. Now you need a little patience. The lilac is only slightly watered when the first shoots appear. Once the plants have reached a height of about ten centimeters, they can be planted outdoors or in the tub, as already described.
Can the lilac be propagated by division?
Many amateur gardeners favor this method of propagation. The plant is dug out, divided with a sharp spade and you get two independent adult plants, which can be transplanted immediately and cultivated separately.
However, this method of propagation is not recommended for the lilac. There is a high risk that the plant is not up to this method.