What is wrong with my hollyhock leaves?
What is wrong with my hollyhock leaves?
Diseases to Watch For Rust, leaf spots and anthracnose are three types of fungus that attack hollyhocks. Leaf spots start as small gray spots on the leaves of the plant. Rust is a common problem with hollyhocks and can cause the plants to look ragged. Brown, yellow or orange spots appear as the fungus forms and grows.
How do you keep hollyhocks healthy?
Tips for Maintaining Your Hollyhocks
- Plant Hollyhocks in a Suitable Location. Hollyhock’s relish full sunlight with balanced soil that drains efficiently.
- Water Hollyhocks Regularly.
- Fertilizer Use.
- Companion Planting.
- Remove Spent Blossoms.
- Prune Your Hollyhocks.
- Winterizing Your Hollyhocks.
How do I get rid of hollyhocks?
Pinch off spent blooms and dead leaves regularly to promote more growth and flowers. Toward the end of the growing season, when most of the blooms are finished, you can cut down the main stems of your hollyhocks. If you want the plant to continue coming back year after year, you can leave some seed pods on the stalk.
What will kill hollyhocks?
Contact insecticides that can be used to suppress or regulate hollyhock weevil populations include acephate (Orthene, Bonide Systemic Insect Control), malathion, carbaryl (Sevin Dust), and pyrethroid-based compounds such as bifenthrin (Hi-Yield Bug Blaster Bifenthrin), permethrin (Eight; Hi-Yield Lawn, Garden, Pet & …
What to do when hollyhocks have finished flowering?
How and When to Deadhead Hollyhocks. Removing spent hollyhock blooms is pretty simple: just pinch or clip off those that have faded and finished flowering, before the seed pod forms. You can do this throughout the growing season. Pinch off spent blooms and dead leaves regularly to promote more growth and flowers.
Should you cut back hollyhocks?
No pruning is required, just remove any leaves that are heavily infected with rust disease through the summer and cut down the flower spikes when the flowers have faded. Hollyhocks are easy to grow from seed and will readily self-seed in your garden.
How often should I water hollyhocks?
Water daily for the first few weeks after planting, and regularly after that, keeping the soil is moist but not waterlogged. Once hollyhocks grow to maturity, they become relatively drought-tolerant, so you can then decrease your watering frequency to two to three times per week for the rest of the growing season.
What fertilizer is best for hollyhocks?
Fertilize the hollyhock plant two times per year, once in the early spring as it begins the growing cycle, and again in the fall to sustain it through the winter. Use a balanced fertilizer, such as 10-10-10 or 15-15-15.
Why are the leaves falling off my hollyhock plant?
Over time the spots can grow together and destroy large sections of the leaves, causing them to die and drop off. At this point, the stems may also develop spots. Although the plant may not die, you may want to put hollyhocks with rust fungus out of their misery because of the severe disfigurement.
What kind of bug eats hollyhock plant leaves?
Japanese beetles love the large leaves of the hollyhock plant and create unsightly holes in the foliage. The hibiscus sawfly looks like an elongated housefly with an orange spot just below the head. The larvae of these pests eat the foliage and can completely destroy the leaves on several plants in a short time.
What can I use to get rid of hollyhocks?
Insecticidal soaps and beetle traps generally aid in ridding the hollyhocks of the pests. Rust, leaf spots and anthracnose are three types of fungus that attack hollyhocks.
What are the hardiness zones for hollyhocks?
Hollyhocks grow in U.S. Department of Agriculture hardiness zones 5 through 9. The plant reseeds itself and will produce new plants every year. However, hollyhock plants sometimes suffer from problems that make the flower stalks look unattractive or cause a drop in plant production.
Why are the leaves on my hollyhock plant turning brown?
Leaf spots start as small gray spots on the leaves of the plant. The disease eats away at the leaf and produces a hole as the infested area falls from the foliage. Rust is a common problem with hollyhocks and can cause the plants to look ragged. Brown, yellow or orange spots appear as the fungus forms and grows.
What kind of disease does a Hollyhock have?
Hollyhocks are charming, old-fashioned plants easily recognized by the tall spikes of colorful blooms. Although hollyhocks tend to be relatively problem free, they are sometimes plagued by leaf spot diseases, especially when conditions are warm and damp. Rust is the most common.
Japanese beetles love the large leaves of the hollyhock plant and create unsightly holes in the foliage. The hibiscus sawfly looks like an elongated housefly with an orange spot just below the head. The larvae of these pests eat the foliage and can completely destroy the leaves on several plants in a short time.
Why are my hollyhocks knocked around in the garden?
The stalks are strong, but can be knocked around by a summer storm. A trellis positioned behind the hollyhocks gives you a place to anchor the plants. Garden twine, looped around the stalk and fastened to the trellis, keeps the hollyhocks in place when strong winds hit the garden.
