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Learn about Weigela

Weigela: Potted Perennial Plant

 

How to Plant

Planting Potted Plants:

  • Choose a location in full sun with moist, well-drained soil. May also be grown in large containers.
  • Prepare the bed by turning the soil under to a depth of 6-12 inches removing any debris, and lightly raking as level as possible.
  • The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
  • Plant on a cloudy day or in late afternoon to reduce transplant shock.
  • Dig a hole for each plant large enough to amply accommodate the root ball.  
  • Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.  
  • Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.  
  • Use the plant tag as a location marker.  
  • Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.

How to Grow

  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination.  
  • Mulches also help retain soil moisture and maintain even soil temperatures. For shrubs, an organic mulch of aged bark or shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
  • Careful watering is essential in getting perennials off to a good start. Water thoroughly at least once a week to help new roots grow down deeply. Soil should be damp at about 1 inch below the soil surface. You can check this by sticking your finger in the soil. Water early in the morning to give all leaves enough time to dry. One inch of rain or watering per week is recommended for most perennial plants. You can check to see if you need to add water by using a rain gauge.
  • After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer such as Garden-tone, as higher rates may encourage root rots.

Growing Tips

  • Prune after the first flush of blooms if desired to rejuvenate the plant.
  • Use weigela for welcome spring color in mixed or shrub beds and borders.
  • ‘Spilled Wine’ is a great compact variety for containers.

Common Disease or Cultural Problems

Anthracnose: This is a fungus disease causes brown spots with purple edges on the leaves. The spots turn black in the center; leaves become yellow, dry and fall off. The fungus overwinters in diseased plant debris. Burpee Recommends: Avoid overhead watering which can spread the fungus spores. Keep a clean garden, remove and discard all diseased plant material. Use a mulch to prevent spores from splashing from the soil onto plants.

Black Spot: This is a fungal disease that affects leaves. It usually occurs in hot, humid or rainy weather. Black circular spots appear on the upper and undersides of leaves. The outer margins of the circles are ragged. The spots can enlarge and merge. The leaves often fall off the plant leaving the plant defoliated. The damage is often worse on the lower leaves. Burpee Recommends: Remove all debris from under the plants. Avoid getting the leaves wet. A mulch under the plants will help prevent spores from splashing up. 

Botrytis: This fungus causes a grey mold on flowers, leaves, stems and buds. It thrives in cool wet weather conditions. Burpee Recommends: Remove affected plant parts, avoid watering at night and getting water on the plant when watering. Make sure plants have good air circulation. Contact your Cooperative Extension Service for fungicide recommendations. 

Powdery Mildew: This fungus disease occurs on the top of the leaves in humid weather conditions. The leaves appear to have a whitish or greyish surface and may curl. Burpee Recommends: Avoid powdery mildew by providing good air circulation for the plants by good spacing and pruning. Contact your Cooperative Extension Service for fungicide recommendations. 

Rust: A number of fungus diseases that rust colored spots on foliage and stalks. Burpee Recommends: For serious infections contact your Cooperative Extension Service for fungicide recommendations. 

Common Pest Problems

Aphids: Greenish, red, black or peach colored sucking insects can spread disease as they feed on the undersides of leaves. They leave a sticky residue on foliage that attracts ants. Burpee Recommends: Introduce or attract natural predators into your garden such as lady beetles and wasps which feed on aphids. You can also wash them off with a strong spray, or use an insecticidal soap. 

Japanese Beetles: Burpee Recommends: Hand pick early in the morning into a bucket of soapy water.

Leafroller: Caterpillars or pupae are found on the inside a folded leaf tied with silk. These feed on leaves and fruit surfaces. They overwinter as pupae or eggs, depending on the species, and emerge in the spring. Burpee Recommends: Check with your local Cooperative Extension Service for insecticide recommendations.

Mealybugs: Mealybugs are 1/8 to ¼ inch long flat wingless insects that secrete a white powder that forms a waxy shell that protects them. They form cottony looking masses on stems, branches and leaves. They suck the juices from leaves and stems and cause weak growth. They also attract ants with the honeydew they excrete, and the honeydew can grow a black sooty mold on it as well. Burpee Recommends: Wash infected plant parts under the faucet and try to rub the bugs off. They may also be controlled by predator insects such as lacewings, ladybugs and parasitic wasps. Check with your Cooperative Extension Service for pesticide recommendations. 

Spider Mites: These tiny spider-like pests are about the size of a grain of pepper. They may be red, black, brown or yellow. They suck on the plant juices removing chlorophyll and injecting toxins which cause white dots on the foliage. There is often webbing visible on the plant. They cause the foliage to turn yellow and become dry and stippled. They multiply quickly and thrive in dry conditions. Burpee Recommends: Spider mites may be controlled with a forceful spray every other day. Try hot pepper wax or insecticidal soap. Check with your Cooperative Extension Service for miticide recommendations. 

Weigela FAQs

Is weigela deer resistant? Yes, weigela does tend to be deer resistant.

Can I grow weigela in a container? Yes, smaller varieties are perfect for larger containers.

Is weigela a good pollinator plant? Yes, it attracts hummingbirds and butterflies to the garden.

Does weigela only bloom in spring? This is primarily a spring blooming shrub, but can repeat bloom throughout the summer months as well.

Do I need to prune my weigela? It is not necessary, but you can prune for size and refresh the growth by pruning after the first flush of flowers.

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