Where is Alcea rosea native to?

Sommario:

1. Where is Alcea rosea native to?
2. How do you look after Alcea rosea?
3. How tall does Alcea rosea grow?
4. How do you grow Alcea rosea?
5. Are hollyhocks toxic to dogs?
6. Where is the best place to plant hollyhocks?
7. Should hollyhocks be cut back after flowering?
8. Is Lavender poisonous to dogs?
9. Are impatiens poisonous to dogs?
10. Do hollyhocks come up every year?
11. What to do with hollyhocks when they have finished flowering?
12. Do hollyhocks come back year after year?
13. Can lavender be poisonous?
14. What happens if dogs eat lavender?
15. What temperature is too cold for impatiens?
16. Are hollyhocks invasive?
17. Do hollyhocks bloom more than once?
18. Is lavender poisonous to dogs?
19. Can you eat lavender Raw?
20. Can impatiens survive 30 degrees?

Where is Alcea rosea native to?

China Hollyhock, (Alcea rosea), herbaceous plant of the hibiscus, or mallow, family (Malvaceae), native to China but widely cultivated for its handsome flowers. The several varieties include annual, biennial, and perennial forms.

How do you look after Alcea rosea?

Provide good air circulation and spray with a suitable fungicide at first sign. Remove all badly affected leaves. If rust disease is a problem in your area, grow as a biennial or grow one of the early flowering varieties such as 'Summer Carnival' as an annual.

How tall does Alcea rosea grow?

Hollyhocks can reach over 2m (6.5ft), so if they are growing in an exposed position, give each plant a stake for support.

How do you grow Alcea rosea?

Grow hollyhocks in moist but well-drained, light soil in a sunny spot. Taller varieties may need staking. Let seeds develop after flowering before removing and composting the plants, so you can sow seeds of the following year's hollyhocks without paying a penny for them.

Are hollyhocks toxic to dogs?

Hollyhocks. These flowers are also non-poisonous to dogs or cats, but you need to be careful about the stems and leaves as they may have resin or fiber which may cause some skin allergies.

Where is the best place to plant hollyhocks?

Plant in a well-draining area with full sun to partial shade. Due to their height, protect from damaging winds and provide support such as a fence, wall, trellis or stake. Hollyhocks will readily self-seed if left to their own devices, so locate them in an area where this won't be a nuisance.

Should hollyhocks be cut back after flowering?

Hollyhock flowers can be removed when they fade and stalks can be cut back after flowering. This will prevent seed heads from forming and reseeding. Although, if you'd like to have seeds set for next spring, leave the flowers and a few stalks until the seeds have dropped.

Is Lavender poisonous to dogs?

Lavender, the plant, does contain a small amount of a compound called linalool, which is toxic to both dogs and cats. The linalool is found in such small concentrations, however, that this is rarely an issue. Problems arise only if a dog ingests a very large quantity of lavender.

Are impatiens poisonous to dogs?

Flower colors are white, pink, red and shades of purple. The plant is deer-resistant and toxic to horses, cats and dogs.

Do hollyhocks come up every year?

They appear to be perennials as they do come back year after year but they are actually biennials which self-seed prolifically. Being a biennial means that it is often best to start new Hollyhocks in August or September so that they will then bloom the following summer.

What to do with hollyhocks when they have finished flowering?

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.

Do hollyhocks come back year after year?

They appear to be perennials as they do come back year after year but they are actually biennials which self-seed prolifically. Being a biennial means that it is often best to start new Hollyhocks in August or September so that they will then bloom the following summer.

Can lavender be poisonous?

Lavender oil is generally not poisonous in adults when breathed in during aromatherapy or swallowed in smaller amounts. It may cause a reaction in children who swallow small amounts. The major effects are due to allergic reactions of the skin.

What happens if dogs eat lavender?

Lavender, the plant, does contain a small amount of a compound called linalool, which is toxic to both dogs and cats. ... Symptoms of lavender poisoning may include vomiting, inability to defecate, a swollen and tender abdomen, reduced appetite, and fever.

What temperature is too cold for impatiens?

Although impatiens thrive in Mediterranean climates, they typically prefer shaded temperatures of around 65 to 70 degrees Fahrenheit. Impatiens may die if the thermometer dips below 32 F.

Are hollyhocks invasive?

Hollyhock mallow is recommended for U.S. Department of Agriculture plant hardiness zones 4 through 10. Although it is not considered invasive, other Malva species can become weedy and potentially invasive in some areas, so be certain you are purchasing plants or seeds for the desired species.

Do hollyhocks bloom more than once?

Hollyhocks are short-lived flowers. ... Although pruning is not required for healthy plants, cutting back the stalks after they flower can encourage them to bloom more than once in a season, advises the University of California Master Gardeners of Napa County.

Is lavender poisonous to dogs?

Lavender, the plant, does contain a small amount of a compound called linalool, which is toxic to both dogs and cats. The linalool is found in such small concentrations, however, that this is rarely an issue. Problems arise only if a dog ingests a very large quantity of lavender.

Can you eat lavender Raw?

Yes, you can eat lavender! Lavender is an herb just like rosemary and thyme and you can eat lavender in endless dishes, drinks and sides! ... The intermedias have more camphor in their oil and are usually not eaten or only used in savory dishes. Angustifolias have sweeter oil and are great for cooking, baking and drinking.

Can impatiens survive 30 degrees?

Even with temperatures below 36 degrees, low elevations may collect frost and cause partial defoliation of impatiens. Sometimes individual plants may endure a brief encounter with 30 degrees and emerge unscathed.