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Category: Gardening Articles

When and how to cut back and prune delphiniums

When and how to cut back and prune delphiniums

I generally cut back and prune my own delphiniums in the autumn once the plant has finished blooming. However, deadheading the blooms throughout the growing season can often result in the second wave of flowers in late summer so I always try my best to promote that second flush of blooms. Deadheading Although delphiniums bloom for only a few months, you can extend this period by removing the flowers once they start to die off. I do this periodically through…

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How to grow conifers in pots?

How to grow conifers in pots?

To grow conifers in pots is a good solution if you need to move them around because of a lack of sun or cold conditions. They also look good in containers standing on either side of your front door. Here’s how to successfully grow conifers in pots. Plus I list and describe five dwarf conifers that grow well this way. Grow conifers in pots Container The pot or container that you choose to plant your conifer in should be at…

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How Far Do Leylandii Roots Spread?

How Far Do Leylandii Roots Spread?

Leylandii roots’ spread Leylandii roots are shallow and don’t grow deeply, even though the trees may grow to 18m to 21m in height. The roots grow and remain in the top 60cm of the soil, and maybe even shallower in clay soil. The spread of the roots is proportional to the height of the tree. If you plan on using leylandii as a hedge, then the roots won’t spread too far. But leylandii roots often extend out further that the…

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How to stop leylandii growing?

How to stop leylandii growing?

You can’t actually stop leylandii growing, just control where it grows. To control the height to which a leylandii (Leyland cypress) tree (or any other conifer) grows, you need to prune it carefully. Leylandii are very suitable for use as hedges as they can handle being pruned. Regular pruning once or twice a year is much better for the plant than one big pruning session when it really gets too tall or wide. Leylandii height and width It helps if…

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How fast do leylandii grow?

How fast do leylandii grow?

Speed of leylandii growth Leylandii, also known as Leyland cypress trees, are the fastest growing conifers. In the early years of this plant, it’s not unknown for the tree to grow between 45cm and 90cm in height per year. Of course, this depends on the leylandii having the best growing conditions possible. Over its lifetime, this Leyland cypress can grow to about 18m to 21m high. This tree is dense, with a broad column at the bottom tapering to a…

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How to revive and bring conifers back to life?

How to revive and bring conifers back to life?

Some common problems with conifers require you to revive and bring them back to life but remember, they are not actually dead, there are just not in good health. If you peel the bark back and you see green under the bark, then the conifers are likely still alive and can be revived. In this guide, I identify the most usual issues that harm conifers and give ways to refresh and revive your conifer. But be warned that it’s not…

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How and when to trim conifers

How and when to trim conifers

Conifers are easy to care for trees that you shouldn’t trim unless you absolutely have to. You may need to do this task if branches become diseased or die, or end up damaged by high winds. Here’s when and how to trim conifers in general so that you don’t harm the tree. This guide is more about ornamental conifers and not hedging conifers such as Leylandii and Thuja which obviously need trimming 2-3 times a year. Even these conifers should…

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How to cut the top off conifer trees

How to cut the top off conifer trees

Cutting the top off conifers is a drastic move and you should do it only after careful thought. You need to examine the tree for the best place to make the incision so that the tree continues to grow healthily and strongly. And then make the cut cleanly. Be sure you really want to do this as your action may spoil the shape of the conifer permanently. Where to cut the top off conifers Most conifers form new buds at…

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How deep are conifer roots?

How deep are conifer roots?

Conifer roots, in general, are relatively shallow though they are dense. Most of the roots reside in the top 1m of the soil the tree is in. But this does depend on the soil type and drainage. However, the roots spread wildly. Conifer roots can spread up to three times the radius of the tree canopy. This makes the roots very difficult to dig up but also helps them stay upright in the worst of storms. When young the conifers…

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Are conifers poisonous to dogs?

Are conifers poisonous to dogs?

The answer “it depends” to “are conifers poisonous to dogs?” is accurate but not useful when your dog’s health can be affected by what you grow in your garden. I explain what you should know and ask when choosing a conifer for your garden. The short answer is most conifers are not poisonous to dog, however, Yew trees (Taxus species) are poisonous to dogs and yews are a very common conifer which is why I bring it up here. Levels…

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