What should I feed my boxwoods
John Thompson
Updated on April 29, 2026
Slow-release, balanced fertilizers are best for boxwood, and a granular form of urea fertilizer 10-6-4 is recommended. You also can use aged manure or cottonseed meal if your plant appears healthy, as long as you are making sure your boxwood has plenty of nitrogen.
How do you keep boxwoods healthy?
- Provide Adequate Drainage. Boxwood plants tolerate a variety of soils, whether acidic or alkaline, rich or infertile. …
- Protect Boxwood Roots. …
- Prune Boxwood by Thinning. …
- Winter Protection for Boxwood. …
- Water Boxwood Wisely. …
- Fertilize Boxwood as Needed.
When should I fertilize my boxwoods?
The optimal time to fertilize is in late fall or early spring. Boxwood roots grow the most in late fall, winter, and early spring, when soil temperatures are more moderate. Late summer and early fall fertilization may cause a plant to initiate new growth that may be burned with early fall frosts and freezes.
Is Miracle Gro good for boxwoods?
Miracle-Gro Tree & Shrub Plant Food Spikes The premeasured spikes are simple to insert, and gardeners won’t need to worry about feeding their plants the correct amount. … Gardeners who use these plant food spikes will find that their boxwoods are full, rich in color, and have strong root systems.Do boxwoods need plant food?
Most evergreens need to be fed Holly-tone, an organic fertilizer for acid-loving plants. But, boxwood — and arborvitaes — are evergreen shrubs that are not acid-loving plants. So, they need an all-purpose plant food. … Fertilize your boxwood with an organic all-purpose plant food to keep them a healthy green.
How do you rejuvenate boxwoods?
Prune the hedge severely, which helps rejuvenate almost all old hedges. For the best results, use pruning shears to drastically shear the hedge back to a height of just 3 feet, leaving the main trunk with a few evenly spaced limbs and foliage.
Are boxwoods acid loving plants?
Although most other evergreens get fed Holly-tone which is for acid loving plants (ie. Azaleas, Rhododendron, Conifers which like a pH between 4.5 – 6.0), Boxwood are different. This broadleaf evergreen is not an acid loving plant, it prefers a pH between 6.5 – 7.0.
Why do my boxwoods have brown patches?
Boxwood leaves can turn brown from the boxwood leafminer. … The infested leaves will develop brown patches as the larvae grow and heavily infested leaves will defoliate in the late fall and early spring. Boxwood leafminer larvae feed on the inner tissue of boxwood leaves causing the browning of leaves of boxwood plants.What kind of soil do boxwoods need?
Boxwood aren’t too picky about soil type but a well-drained soil is essential. They prefer a sandy loam. As with so many other types of ornamental plants, constantly soggy or wet soil can cause root rot and other harmful plant diseases.
How can I encourage my boxwood to grow?Prune variegated boxwood about six weeks before the last frost in your area to encourage vigorous lateral growth. Boxwood grows slowly, but annual trimming keeps it thick. Cut the lead tip of each branch back to a lateral branch or bud facing outward to encourage shrubby growth.
Article first time published onHow often should boxwoods be watered?
Water your plants regularly. When boxwoods are becoming established, they need deep waterings regularly (at least once a week). After a few years, you can scale your deep waterings back to every two to four weeks (though hotter climates may still require regular weekly waterings).
How do you treat yellow leaves on boxwoods?
Unfortunately, there is no effective treatment for this condition. We generally try to avoid it by managing watering properly and planting boxwoods in locations with excellent drainage. Be aware that keeping these plants too wet can lead to root rot that’s generally fatal.
Is milorganite good for boxwoods?
The best defense against boxwood problems is to plant and care for them in the best way possible. Boxwoods ^hate^ waterlogged soil and ^detest^ dry soil. … Try fertilizing your boxwoods with Milorganite or cottonseed meal. Both release nutrients very slowly, exactly as a boxwood likes.
Can you overwater boxwoods?
Often, if you are over-watering your boxwood, the foliage may turn yellow or wilt. Sometimes the foliage may fade or turn pale compared to usual. And remember – maintaining a 1-inch layer of organic mulch around your plant and its driplines can ensure its shallow roots stay hydrated but not soggy.
Do boxwoods like acidic fertilizer?
The correct soil pH is absolutely critical as boxwood thrive best in neutral soils with a pH from 6.5 (slightly acidic) to 7.5 (slightly alkaline). Due to the fact that soils in the South are typically acidic, we strongly advise having a sample done to test your soil’s pH and then amending to adjust it if necessary.
Is lime good for boxwood?
One of the easiest and most important practices to ensure the health of boxwood is to maintain a proper soil pH. … Because agricultural lime, burned lime, and dehydrated lime buffer the soil pH for generally less than one year, they are not recommended for use on boxwood.
Do boxwoods need iron?
An example of this is a boxwood that is suffering from a lack of iron which is made apparent by yellowing leaves. … Now iron is essential for the production of chlorophyll. Of course chlorophyll is what turns a plant’s leaf green, so without plenty of available iron, you get a yellow coloration.
Should you trim yellow leaves on boxwood?
Yellowing leaves indicate a more serious problem, such as Phytophthora root rot, English boxwood decline and leafminer or nematode infestation. It is best to prevent the leaves from turning yellow in the first place by adopt several cultural habits that keep boxwoods healthy and thriving.
What causes dead spots in boxwoods?
Spiders are predators of insects and would, if anything, benefit the boxwoods. … The primary suspect in your case is Volutella, a fungal disease that creates cankers that girdle and kill stems. It also causes orange-bronze-colored or singed-looking leaves in spring.
Can boxwoods be rejuvenated?
“Boxwoods can be cut back pretty dramatically and they’ll re-grow nicely. … “But because boxwoods are very prone to winter damage, you want to time their pruning—especially a hard pruning—carefully. The best time is that period where the end of winter meets the beginning of Spring, just before the new growth appears.
Do boxwoods like wet soil?
Boxwoods thrive in sandier soils of average fertility and moisture, with a pH slightly acidic to slightly alkaline. Although they are often found surviving in somewhat clay soils, poorly drained or wet soil conditions are lethal. In less “exposed” sites, boxwood tolerate full sun.
Should you mulch around boxwoods?
Properly mulching the shallow-rooted boxwood helps retain moisture and keep roots cool. Growing boxwoods should have a 2 to 3 inch (5-8 cm.) layer of mulch extending 12 inches (31 cm.) past the foliage.
Is peat moss good for boxwood?
Boxwoods aren’t very picky about soil and growing conditions, but well-drained soils are best. Mix peat moss and Holly-Tone fertilizer into the planting soil, and mulch to keep the soil moist. Water regularly until the plants are well rooted. Once established, Boxwoods are extremely drought tolerant.
How do I make my boxwood greener?
Slow-release, balanced fertilizers are best for boxwood, and a granular form of urea fertilizer 10-6-4 is recommended. You also can use aged manure or cottonseed meal if your plant appears healthy, as long as you are making sure your boxwood has plenty of nitrogen.
What is eating my boxwood leaves?
The most detrimental pest of boxwoods is the boxwood leafminer. It is a small fly that is indigenous to Europe but is now found throughout the United States. Both adults and their larvae cause serious damage to the boxwood foliage in the form of blistering and discoloration.
How do you keep boxwoods from turning brown?
In the early spring, before new growth has started, spray your boxwood with a copper fungicide and continue to spray according to package directions until the new growth has hardened. You may need to spray again in the late summer or fall if your boxwood adds extra growth during particularly rainy periods.
Do boxwoods like full sun?
The boxwood can be grown as a standalone plant, in groups or as a hedge. Furthermore, the boxwood has been used in containers, topiaries and for bonsai purposes. They can thrive in light shade as well as full sun. … Very low maintenance, the boxwood is prized for its foliage, which is best pruned in the winter months.
Does pruning boxwood encourage growth?
The best time to trim boxwoods to shape is during the first few years. This will encourage branching and new growth, which will result in denser growth and defined shape.
Will yellow boxwoods turn green?
Normal Yellowing Boxwood leaves can lose their green color during the winter if they’re grown in full sun. However, when temperatures warm again in the spring, they will regain their normal green color. Planting a tree nearby to shade your boxwood can prevent this problem, but it isn’t usually harmful to plant health.
Why is my boxwood bush turning yellow?
Very little fertilization is required to keep the Boxwood looking its best. However, if you notice your boxwood leaves turning yellow, it is possible that it is iron deficient. A good mulch can help keep just the right pH in balance and prevent this from happening.
Why do boxwoods turn yellow in winter?
Winter Injury Winter winds, frost and bright winter sun can cause foliage to yellow or turn a sickly shade of bronze or orange. This is especially common on Japanese boxwoods (Buxus microphylla var. japonica) during the winter and may also affect plants that are in an exposed location.