Lavender: planting, growing, caring for and flowering


Lavender is among the easiest plants to grow as long as it benefits from the full sun. This splendid Mediterranean can however be installed in regions with a harsh climate if it is not in the shade. To do this, you just have to choose among the most rustic varieties, able to withstand temperatures of around -18 ° C without flinching … enough to give a little Provencal air to any garden in France. Others, more cautious, are planted in pots and are sheltered for the winter. Let’s take stock of the planting of lavender, their maintenance (because yes, they still need some attention to not wither away) and their flowering.

Plant lavender

Lavender is available in around thirty species and multiple varieties. Scented, with gray, bluish, downy foliage, more or less bushy, of varying hardiness … In addition, the emblematic lavender blue is not the only color of this pretty Provençal since it can be adorned with ears roses, white or purple. It can be used in rockery, borders or massive and is just as popular in a pot placed on a balcony or a terrace facing south.

Lavender is the ideal plant for dry gardens. We reserve for it the area of ​​the garden most exposed to the sun’s rays because it needs light and of much heat. It is satisfied with a stony or sandy soil like any good garden soil, the main thing being that its substrate is well drained and that care has been taken to unpack it beforehand so that it is lightweight. Indeed, the beautiful does not support heavy soils. Some varieties have a slight preference for acidic heather-type soils. To avoid making mistakes, it is therefore necessary to check with an advisor at the time of purchase.

The best time to plant lavender is the spring after any risk of frost. This is also possible in autumn, but only in the southernmost regions. The right method for successful cultivation in the ground is the following :

  • Dig a hole large enough for each plant.
  • Space the feet of a good forty centimeters at the very least so that the lavender does not shade themselves. We do not exceed 5 feet per square meter.
  • Place a handful or two of amendment per hole.
  • Bring a shovelful of sand to the bottom if the soil is clayey because it is a heavy soil that is not suitable for lavender.
  • Install the plants and reseal, ensuring that the upper part of the root ball is perfectly buried.

If we opt for a lavender plantation in pot, it is preferable to choose dwarf or low-development varieties and a terracotta container twice the size of the root ball. A diameter of about fifty centimeters is ideal. The substrate should be light, composed of pozzolana or coarse river sand and horticultural soil for Mediterranean plants. Add a little heather soil for variety L. stoechas who likes acidic soils.

In the ground or in pots, the lavender base should be watered just after planting, but moderately.

Maintain your lavender

Lavender is undemanding in terms of maintenance. The watering are only exempted in the event of severe drought or prolonged drought. The rest of the time, it does not need to be watered. It also does not require the addition of fertilizers.

We must think about asking a wintering veil on potted lavender in the event of frost announced or place them away from the cold, in a bright room.

The lavender size takes place once a year, as soon as flowering is over. Stripped hardwood is sheared off because no new growth can develop on the old wood. You can also ventilate the heart of the plant a little by lightening it up, but be careful to keep your hand light because this Mediterranean does not survive severe pruning. Branches should never be cut too short.

Blooming lavender

The worst heatwaves can’t stop lavender from blooming. Its flowers bloom profusely in the heat and great light, from late May to mid-September.

The lavender spikes have to be picked at the very beginning of their blooming, in the heart of summer, because it is at this time of the year that their fragrance is most developed. We can thus make dry bouquets to be placed in all rooms of the house. For a divinely scented interior atmosphere, simply take the leaves lavender because they are aromatics as well as flowers, leave them to dry in small pots or cheesecloth bags to place on or in dressers and cupboards.

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