What to do in your garden during May
Follow the tips beneath as a basic maintenance guide for your garden this May.
Plant & Sow
Annuals
Sow all summer flowering annuals:
-
Dianthus (Carnation, Pink) -
Linum grandiflorum (Flax) -
Centaurea cyanus (Cornflower) -
Delphinium grandiflorum (Butterfly delpinium) -
Gazania species (Treasure flower) -
Alcea rosea (Common hollyhock) -
Lathyrus odoratus (Sweet pea,) -
Schizanthus wisetonensis (Poor man’s orchid, butterfly flower) -
Malcolmia maritima (Virginian stock) -
Iberis umbellata (Candytuft) -
Gaillardia pulchella (Blanket flower, Indian blanket)
Sow these winter flowering annuals:
-
Calendula officinalis (Pot marigold) -
Nemesia species (Nemesia species) -
Lathyrus odoratus (Sweet pea,) -
Clarkia amoena (Godetia whitneyi) (Satin flower, godetia) -
Chrysanthemum species (Annual chrysanthemum) -
Linaria maroccana (Toad flax) -
Consolida ambigua (Larkspur) -
Felicia bergiana (Dwarf felicia, kingfisher daisy) -
Arctotis acaulis (Tufted arctotis,marigold) -
Viola cornuta (Viola)
Perennials
Gardenias – known as one of the most fragrant shade-loving plants. They have attractive evergreen glossy foliage that grows into a neat round bush. These beautiful plants love growing in well-drained, acid soil.
Vegetables
Sow vegetables like:
-
Allium cepa (Onions) -
Petroselinum species (Parsley) -
Apium graveolens (Celery) -
Phaseolus coccineus (Runner bean) -
Raphanus sativus (Radishes) -
Lactuca sativa (Lettuce) -
Daucus carota (Carrots) -
Brassica oleracea var. capitata (Cabbages) -
Brassica campestris var. rapa (Turnips) -
Allium porrum (Leeks) -
Beta vulgaris var. esculenta (Beetroot)
Garden Maintenance
Fertilize
Fertilize fruit trees like:
- Fertilise annuals and bedding plants with a liquid fertilizer every 14 days.
General garden maintenance
- Lift Dahlias during this month and store in a cool, dry place.
- Plant bulbs like Ranunculus and anemones at two-week intervals to extend the flowering time.
- Sow cool-season shade lawn.
- Make hardwood cuttings.
- Mow the lawn if necessary.
- Water plants properly, giving them a thorough soaking every three or four days to encourage deep root development. Mulch well with organic material.
- Spray apples, pears and quinces against codling moth; and apricots, cherries, nectarines, peaches and plums against fruit fly. Spray grapes for mildew where necessary.
- Deadhead roses regularly and water two or three times weekly.
- Mulch the garden beds.
- Remember to deadhead annuals and bedding plants regularly and feed every 2 weeks or so with diluted liquid fertilizer.
- Continue to remove weeds from lawns and pavings.
- Lift and divide spring-flowering irises.
- Keep all perennials well watered and feed with all Purpose Fertilizer.
- Remember to water the garden early in the morning and preferably on wind-free days.
- Feed flowering shrubs once a month.
- Feed your hydrangeas.
For May maintenance tips on watering, pruning,
pests and disease, fertilizing and much more visit our countrywide maintenance guide.







































