In May, your garden does what it pleases. The month of May is a month of enrichment for your plants, but also a month of intense activity for the gardener. May also signs the end of the risk of frosts, which are now left behind. Grab your shears and your rakes, you have a lot of tasks to do in the garden for this the month.


Gadras garden invites you to discover the non-exhaustive list of the different work to perform in the garden in May.


In the garden of ornament

Works to be done in the garden of ornament in May.



The month of May is the last time to prune your spring flowering shrubs. Finish cutting the shrubs that have finished flowering and remember to water them well after pruning.

Prune your evergreen shrubs.

Prune false cypress.

Cut spring perennials spring who have stopped flowering.

Perform only the height of upkeeing of the Prunus.

Prune lilcacs, tamarisk and ligustrum.




Sow dandelions.

This is the last time to sow immortal and nasturtiums.

Concerning the perennials, you can sow in nursery asters. Sow ancolies, columbines, “belles de nuit”, perennial and annual bellflowers, linum perenne, primroses…

You can plant perennial and annual alysses.

At the beginning of the month of May, you can still sow the seeds of cosmos in place.

Sow dahlias, sow flax in final spot, forget-me-nots in box, osteo in final spot and daisies in box.

You can sow grass.



Concerning bulbous, put in the ground your gladiolus bulbs.

It’s time to plant the tubers of dahlias for the month of May is the great period for planting your dahlias.

You can plant your ageratums. Think of watering them well after planting. If you sow in April, they must be transplanted after 15 days, three weeks later. Plant pelargoniums to its final spot.

Plant your annuals like the fragrant alysses petunias.

The month of May is the perfect month for planting begonias. You must plant them by setting the hollow part upward.

Plant seedlings of coleus in their final place, plant eyelets, osteo, in final place also zinnias, verbena in their final place too.

At the end of May, think about planting ipomoea and Snapdragons in their final place.

Repot the lily of the Valley which has stopped flowering and replant it, water it well after planting.

Plant your conifers. For example, plant pine or even cypress.



The month of May is the ideal time to multiply your lilacs from cuttings.

Multiply by cutting your “ampelopsis”.

Concerning vines, you can propagate the honeysuckles.

Propagate azaleas before dipping the base of the plant in a pair of hormone.

Transplant your geraniums if you have sown them in the month of April and replant them in buckets.

Transplant your sweet pea.

Transplant the “impatience” and lobelias that you have sown in April.

Propagate lavender in chassis.

You can propagate passionflowers, rhododendron, spirea.

Propagate hydrangeas, deciduous azaleas.

Propagate lilac, dahlias, asters, aubreta.



Bind your climbing roses

Control the development of the vines and think of linking them to the structures if necessary.

Pull the weeds that have developed in your beds.

Remember to fertilize your bulbs.

Clean your flowering spring shrubs such as lilac or the forsythias. Use a pruning shear or a chisel to remove dry or wilted leaves.

Clear up your summer flowers for their development.

Clarify the poppies.

Perennials grow quickly at this time, use stakes to maintain them and to prevent their breakage.

In the fruit garden

Works to be performed in the fruit garden in May.


Abricotier - arbres fruitier

Soften the soil at the foot of the fruit trees.

Clear up your fruit trees to improve fruit quality.

Place fillets on your fruit trees to prevent birds from seizing them.

Prune hazelnut trees, if you live in a mild climate region, cut olive trees.

Cut at the base fruit trees

Cut your bushberries and your strawberry plants.

Harvest the cherries.


Works to be performed under the greenhouse in May.



Air well the greenhouse to remove heat, closed greenhouse can reach 40 degrees.

If you have mediterranean plants in the greenhouse, take them out.

Repot your flowers.

If the sun is too strong, you can install glass shading.

Divide your tuberous begonias and pelargoniums under greenhouse.

You can increase the frequency of watering.

In the vegetable garden

Works to be performed at the garden in May.



Sow in final spot chervil under shade or partial shade. You can still install a veil for wintering to protect them from the night if there is a risk of frost.

Concerning aromatic plants, dill must be sown in April-May. After sowing, think about clearing up your young plants by eliminating weaker individuals. Plant your feet of basil. Sow spring onions, chervil, chives, coriander, cumin, parsley, savory.

The month of May is the good time to sow root vegetables, you can sow carrots, radishes, beets in final spot.

You can sow eggplants, beetroot, carrots, curled-leaves endives, zucchini, melons, pumpkins.

You can also sow cabbage broccoli, Brussels sprouts, cauliflower, headed cabbage, kohlrabi, purslane, lettuces, rutabaga, endives, orache spinach.

May is the perfect month to perform your seedlings of endive, chickpea, pumpkin.

The month of May is also the ideal time to sow your melons and the watermelon.

You have until June to sow your peas, your radishes, your arugula.

This is the last time to sow lettuce, parsnips before the next sowing in September. This is the last time to sow lettuce, parsnips before the next sowing in September. It is also the last time to sow salsify, tomatoes that you have sown in April.

In mid-May, you can also start to plant broad beans.

At the same time, sow your sweet corn, you have to wait mid-May because this annual plant needs a well heated soil to grow in ideal conditions.



May is a good time to plant asparagus, think about maintaining the ground wet to carry out planting.

Plant cabbage called “Daubenton”.

It is the last time to plant your yams of China. Be sure to make a mound of soil for the protection of your yams.

Plant your potatoes, plant the seed upwards.

At the beginning of May, plant tomatoes that you have sown in April.

Concerning aromatic plants, you can plant the rosemary and the thyme.

Plant comfrey, spearmint.

From 15 May in the cold areas, you can plant tomatoes, chilies, peppers, eggplants. You can also put some protection to accelerate their development or put them in the ground.



You can multiply sage flower.

You can divide the onion

Divide chives.

You can also divide the sorrel.

Divide chives.

Cut/propagate thyme in pot.



It is the right time for harvesting dill (leaves).

You can still harvest your fall artichokes by cutting the stem of the artichoke about 10 cm below its head.

You can start harvesting asparagus. Collect them in the morning. You can also start collecting kohlrabi, peas, bean, escarole.

Harvest carrots, curled-leaved endive, cabbage called “Daubenton”, lettuce, turnip, onion, sorrel.

You can harvest leeks at any time of the year.

On the side of aromatic plants, collect the chervil, green onions, thyme, rosemary, parsley, a bay leaf, chives.

Collect orach.

Collect orach.
From the month of May and this till the month of October, you can harvest some varieties of strawberries. Tip: collect in the morning to keep maximum of the sweet taste.


tunnel potager

Clear up your crop of carrots, this will allow you to provide more space.

Loosen the soil of your garden.

Eliminate weeds that have grown in the vegetable garden.

Hoe the plants in the garden to facilitate the penetration of water.

Water plants well. Increase the frequency of watering in hot conditions.

Hoe and surround the potatoes with soil.

Spread compost to enrich the garden

Other maintenance work

Other maintenance to be performed in May.

Other maintenance work

Tondeuse de jardin

If you don’t have pools in your garden, you can start to install them. So dig your future pools.

Plant your pond plants.

Plant aquatic plants.

Check the functioning of your pool’s filtration system.

Remember to feed the fish.

Rid the lawn of thistles.

Eliminate algae from your pool, the heat promotes the development of green alga.