Plants are stunted but seldom killed, and roots are deformed. Managing Outbreaks: Harvest promptly to minimize damage. Damage: The root maggots eat fine root hairs, and then tunnel into the roots.
Position Full sun to partial afternoon shade. These interesting yet variable plants resemble shallots more than other onions. Companions Potatoes, Lettuce, Beet, Thyme and Chives. Planting and Harvesting Calendar < Back to All Plants Pests which Affect...
Companions Mache and Peas. Troubleshooting Spring crops bolt to seed quickly, so pull them when the roots are perfect. Frost tolerant Light frost improves flavor, but can be damaged by hard freezes.
Usually horseradish should be planted by itself. Keep scrubbed roots in the refrigerator. Position A sunny spot with room to spread. Companions Potatoes. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Horseradish Aphids (General)...
Some of the larvae present in the soil will have migrated to the rich new food supply. Managing Outbreaks: Several commercial products labeled for indoor use that are based on the Israelensis strain of Bacillus thuringiensis give good results when applied...
Companions Lettuce, Spinach and Peas. Troubleshooting Large, stately plants are easy to grow. Frost tolerant Tolerates frost, but is injured by hard freezes. Position Full sun. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Celeriac...
Spacing Single Plants: 3" (10cm) each way (minimum) Rows: 3" (10cm) with 3" (10cm) row gap (minimum) Sow and Plant Start seeds indoors in late winter to early spring when growing cold-hardy bunching varieties.
Position Full sun. Notes Needs more water than many other vegetables. Feeding Not usually required. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Rutabaga Aphid, Cabbage Aphids (General) Cabbage Root Maggot Slug Snail Wireworm...
Companions Onion, Onions and Radish. Can be left in the soil through winter in many areas. Frost tolerant Yes. Position Sun or partial shade. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Parsnip Aphids (General) Carrot Rust...
Companions Nasturtium, Lettuce and Peas. Troubleshooting Flea beetles often make small holes in leaves, but do not merit control. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Radish Aphids (General) Cabbage Root Maggot Slug...
Allow 12in (30cm) between large-flowered bearded irises. As the flowers fade in the garden, trim them off with scissors or pruning shears. Harvesting Cut irises for arrangements as soon as the buds show good color; they will continue to open indoors.
Frost tolerant Echinacea is a hardy perennial that survives very cold winters. Notes Echinacea is grown for its beautiful flowers and for the medicinal properties of teas and tinctures made from roots, leaves and flowers.
Troubleshooting Use only perfect, blemish-free roots when forcing ginger to bud in spring, because ginger roots can carry root-rot diseases that can spread to the garden. Good quality potting soil enriched with compost can be used in containers.
Companions Beet, Chamomile, Carrot, Strawberry, Lettuce, Chinese Cabbage and Cabbage. Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.
Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area. Position Full sun. Or, start with young purchased plants. Where winters are mild, parsley can be sown in fall and grown through winter.
Use well aged compost or vermicompost to condition compacted soil. Notes Keep plants well weeded to reduce competition for nutrients are water. Feeding Soil quality is more essential that supplemental feeding.
Feeding Liquid feed every two weeks throughout the season. Troubleshooting Resents hot, humid weather. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Celery Aphid, Black Bean Aphids (General) Carrot Rust Fly Slug Snail Plant...
Spacing Single Plants: 2' 11" (90cm) each way (minimum) Rows: 2' 11" (90cm) with 2' 11" (90cm) row gap (minimum) Sow and Plant Start with a purchased plant, or start seeds indoors and set out seedlings two to four weeks before your last frost.
When the large plants are cut back in summer, old branches are quickly replaced by a fresh flush of foliage. Feeding Not generally needed. New growth emerges in mid-spring, followed by flowers that attract pollinators in early summer.
Spacing Single Plants: 5" (15cm) each way (minimum) Rows: 3" (10cm) with 7" (20cm) row gap (minimum) Sow and Plant Sow in mid-spring, at about the time apple trees bloom. Notes Each seed is actually a multi-celled capsule, so you may need small scissors...
Annual weeds complete their lifecycle – sprouting, flowering and setting seed – in one season. Black polythene is very effective for this. Revisit growing areas once a week to remove young seedlings before they've had a chance to establish.
Grow short-day varieties in southern latitudes. In clay soil, grow in raised beds or rows. Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.
Hardy spring-blooming anemones are ideal companions for tulips. Harvesting Cut anemones to use in arrangements just as the blossoms open. They naturalize beautifully in hospitable climates.
Preventing Problems: Plants including buckwheat, borage, catnip and radishes attract numerous beneficial that can help control cucumber beetles. Managing Outbreaks: Spotted cucumber beetles are difficult to hand pick because they are small and prone to...
Spacing Single Plants: 1' 1" (35cm) each way (minimum) Rows: 11" (30cm) with 1' 3" (40cm) row gap (minimum) Sow and Plant Catnip can be started from seeds sown indoors, or from a rooted cutting or purchased plant.
Spacing Single Plants: 11" (30cm) each way (minimum) Rows: 11" (30cm) with 11" (30cm) row gap (minimum) Sow and Plant When starting snapdragon seeds indoors in late winter, barely cover the seeds with moist seed starting mix.
Notes In late summer, dig away an outer stalk, cut back the leaves to 3 inches (8 cm), and plant it in a small container. Position Full sun. Plant lemongrass in a warm, sunny spot that is convenient to water.
