what to plant with delphiniums

If using stakes or plant rings for support, planting medium height perennials as delphinium companion plants can help hide the unsightly stakes and supports. Any of the following will work well for this: Echinacea. Phlox.
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Delphinium Companion Plants

• Sunflower.
• Hollyhock.
• Tall grasses.
• Joe pye weed.
• Filipendula.
• Goat's beard.

1. Do delphiniums spread?
2. Where is the best place to plant delphiniums?
3. Do delphiniums come back year after year?
4. What is the best way to support delphiniums?
5. How many years do delphiniums last?
6. Do Delphiniums bloom more than once?
7. How poisonous are delphiniums?
8. Is delphinium poisonous to touch?
9. Are delphiniums poisonous to dogs?
10. Do delphiniums reseed themselves?
11. Do you deadhead delphinium?
12. What to do with delphiniums after flowering?
13. What sort of soil do delphiniums like?
14. Why are my delphiniums dying?
15. What is eating my delphiniums?

Do delphiniums spread?

Height/Spread:

Varies by type. The tallest varieties are found within the Delphinium elatum group, with stalks regularly 5 to 6 feet tall (with some reaching 8 feet) and a spread of 2 feet.

Where is the best place to plant delphiniums?

Where to grow delphiniums. For best results grow delphiniums in moist but well-drained soil in full sun. Delphiniums are tall plants, so do best at the back of a sunny border.

Do delphiniums come back year after year?

Once the risk of frost has passed, and the plant is of a reasonable size, plant out and protect from slugs. Once established, Delphinium will come back reliably each year and the major chore is extensive staking at the beginning of the season, which is essential.

What is the best way to support delphiniums?

Support delphiniums with canes as they grow tall, such as these 120cm bamboo canes from Gardman. They are very heavy feeders and require a lot of nutrients. At the start of the season, use mulch with manure to help keep them nourished. Thinning is very important for the plant's health.

How many years do delphiniums last?

While delphiniums are spectacular plants, many are short-lived perennials. Most last only 2 or 3 years in the garden. A word of caution to gardeners with small children.

Do Delphiniums bloom more than once?

Adding splendor and architectural height to borders, Delphiniums (Larkspurs) are elegant and stately perennials, biennials or annuals, which form incredibly eye-catching spikes of single or double flowers in early-mid summer and often rebloom in late summer or early fall.

How poisonous are delphiniums?

The delphinium, more commonly called larkspur, is a beautiful and tall flowering plant with toxic amounts of diterpene alkaloids that can cause serious neuromuscular effects in dogs, other animals, and even humans. In fact, just two milligrams of the plant is enough to kill an adult human.

Is delphinium poisonous to touch?

This toxic plant is dangerous, especially the younger parts of the plant. If consumed by humans, it will cause severe digestive issues, and if touched, it can cause severe skin irritation. All parts of the plant contain poisonous chemicals, including various diterpenoid alkaloids like methyllycaconitine.

Are delphiniums poisonous to dogs?

Delphinium. More commonly known as Larkspur, these flowering plants are highly poisonous and pose a great threat to both dogs and humans. While they can cause neuromuscular effects in our pawed pals, a small amount of the plant can kill a human.

Do delphiniums reseed themselves?

Delphiniums are one of the hardiest perennials found in Northern Utah gardens. However, they are as beautiful as they are tough. ... “They reseed themselves most years, so they are often confused with perenials. “Larkspur flowers are a bit smaller, but come in the same wonderful colors as delphiniums.

Do you deadhead delphinium?

The taller, large-flowered delphiniums need sturdy stakes. ... Deadhead by cutting spent flower spikes back to small, flowering side shoots. After delphiniums have finished blooming, cut flower stalks to the ground, and new, though smaller, flower stalks will develop.

What to do with delphiniums after flowering?

Cut the flowering spike right back to the ground leaving any remaining foliage. Make sure that it has light and air around it, give it a good soak and it should regrow another flowering spike towards the end of August for a second display in September.

What sort of soil do delphiniums like?

They love well-drained soil, but are hungry feeders. This means adding plenty of grit on heavy soils to help with soil drainage. If delphiniums sit wet in their dormant winter season, they can die, so make sure you prevent this.

Why are my delphiniums dying?

At the top of the list is delphinium crown rot. As the name more than suggests, this is a disease where plant stems rot at the base or the "crown" of the plant. The first symptoms may be yellowing leaves on the bottom parts of the plant. ... It is caused by a bacterium that gets into the plant through cracks in the stem.

What is eating my delphiniums?

If you're wondering what's eating your delphiniums, search no more. The answer is simple — it's those pesky delphinium worms at work again!