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Old 06-03-2014, 12:12 PM   #16
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Will this Spirea shrub survive?


Quote:
Originally Posted by Indepspirit
Spirea have an added benefit of having the capacity to endure just about any soil type, they will even grow in compacted clay soils. The main thing that Spirea need is plenty of light. They will grow in partial shade but full sun will bring out there biggest and best blooms. It is hard to tell the foliage color from the photo (or it could just be my aging eyes), but the yellow foliage varieties, are an exception as they will bloom well in partial shade. If you want to use the Miracle Gro that's fine, however Spirea are not substantial feeders. An annual dose of compost is best. If using fertilizer it is better to use a balanced fertilizer like 10-10-10, the Miracle Gro is more like a 15-30-15. As already mentioned adding mulch will help keep the moisture in the ground. Spirea do not like "wet feet" so don't over water them. When they are first planted give them around an inch of water a week. You want to keep the soil saturated but not soggy. Once they are established you may never have to water them again depending on where you live. If the summers are dry and hot water once a month or every other month. Over watering and over fertilizing are the two most common mistakes people make when growing Spirea. They are a hardy shrub and don't need to be babied just let them grow naturally.
. So I should water them once a month and feed them as needed?

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Old 06-03-2014, 12:45 PM   #17
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Will this Spirea shrub survive?


Quote:
Originally Posted by Indepspirit
Spirea have an added benefit of having the capacity to endure just about any soil type, they will even grow in compacted clay soils. The main thing that Spirea need is plenty of light. They will grow in partial shade but full sun will bring out there biggest and best blooms. It is hard to tell the foliage color from the photo (or it could just be my aging eyes), but the yellow foliage varieties, are an exception as they will bloom well in partial shade. If you want to use the Miracle Gro that's fine, however Spirea are not substantial feeders. An annual dose of compost is best. If using fertilizer it is better to use a balanced fertilizer like 10-10-10, the Miracle Gro is more like a 15-30-15. As already mentioned adding mulch will help keep the moisture in the ground. Spirea do not like "wet feet" so don't over water them. When they are first planted give them around an inch of water a week. You want to keep the soil saturated but not soggy. Once they are established you may never have to water them again depending on where you live. If the summers are dry and hot water once a month or every other month. Over watering and over fertilizing are the two most common mistakes people make when growing Spirea. They are a hardy shrub and don't need to be babied just let them grow naturally.
Two questions.

When the Spirea continues to look brown on the bottom what do I do?

Over time why do the branches go dead and the Spirea gross halfway? Meaning half of the shrub is dead. How often do they need to get pruned? I used to have Spirea's and after 5 years I had to pull them out because there was hardly any growth.
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Old 06-03-2014, 01:02 PM   #18
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Will this Spirea shrub survive?


Granted there are different types, but I cut my Spirea to the ground in the fall.
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Old 06-03-2014, 01:06 PM   #19
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Will this Spirea shrub survive?


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Originally Posted by dinosaur1 View Post
. So I should water them once a month and feed them as needed?
Since you just put them in a week ago keep the ground moist but not soggy to help get them established. About 1" of water a week. Once they are established (probably by the middle of this month) they will only need water if drought like conditions exist. I have 2 of them by my patio here in Southern CA and I water mine once or twice during the summer usually (this year they may need a bit more) and they grow well.
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Old 06-03-2014, 02:41 PM   #20
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Will this Spirea shrub survive?


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Originally Posted by dinosaur1 View Post
Two questions.

When the Spirea continues to look brown on the bottom what do I do?

Over time why do the branches go dead and the Spirea gross halfway? Meaning half of the shrub is dead. How often do they need to get pruned? I used to have Spirea's and after 5 years I had to pull them out because there was hardly any growth.
The reason Spirea are so popular is because they are one of those plants that no matter what you do they will grow back. Pruning Spirea is easy and when to prune depends on what type you have. The varieties that bloom in the spring, like Bridalwreath and Snowmound are best pruned just after they flower. The spring bloomers bloom on old wood and are usually pruned for shape and size. Similar to Lilacs, Spirea become woody as they age.
If this happens you can severely prune them to encourage new growth. Every 4-5 years I prune my Bridalwreath to a height of 3"-4" from the ground. This cause new branches to grow from the base of the shrub and gives it a much younger appearance.

If you have the varieties that bloom in summer, like Spirea japonica and S. bumalda then prune them in early spring. The summer varieties bloom on new growth not old wood. If you want to keep your summer blooming Spirea full then prune them hard removing anywhere from 1/3 to 1/2 of the oldest growth every spring. As the flowers of the summer varieties start to fade you can trim them if you find them to be unsightly without hurting the shrub at all.
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Old 06-03-2014, 03:28 PM   #21
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Will this Spirea shrub survive?


Quote:
Originally Posted by Indepspirit
The reason Spirea are so popular is because they are one of those plants that no matter what you do they will grow back. Pruning Spirea is easy and when to prune depends on what type you have. The varieties that bloom in the spring, like Bridalwreath and Snowmound are best pruned just after they flower. The spring bloomers bloom on old wood and are usually pruned for shape and size. Similar to Lilacs, Spirea become woody as they age. If this happens you can severely prune them to encourage new growth. Every 4-5 years I prune my Bridalwreath to a height of 3"-4" from the ground. This cause new branches to grow from the base of the shrub and gives it a much younger appearance. If you have the varieties that bloom in summer, like Spirea japonica and S. bumalda then prune them in early spring. The summer varieties bloom on new growth not old wood. If you want to keep your summer blooming Spirea full then prune them hard removing anywhere from 1/3 to 1/2 of the oldest growth every spring. As the flowers of the summer varieties start to fade you can trim them if you find them to be unsightly without hurting the shrub at all.
Tha Spirea that I had I didn't see any growth after the 5th year so I cut the dead wood and from that point there was no growth other than whatever little part of it on the ground....so I removed it.
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Old 06-03-2014, 05:50 PM   #22
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Will this Spirea shrub survive?


Quote:
Originally Posted by Indepspirit
The reason Spirea are so popular is because they are one of those plants that no matter what you do they will grow back. Pruning Spirea is easy and when to prune depends on what type you have. The varieties that bloom in the spring, like Bridalwreath and Snowmound are best pruned just after they flower. The spring bloomers bloom on old wood and are usually pruned for shape and size. Similar to Lilacs, Spirea become woody as they age. If this happens you can severely prune them to encourage new growth. Every 4-5 years I prune my Bridalwreath to a height of 3"-4" from the ground. This cause new branches to grow from the base of the shrub and gives it a much younger appearance. If you have the varieties that bloom in summer, like Spirea japonica and S. bumalda then prune them in early spring. The summer varieties bloom on new growth not old wood. If you want to keep your summer blooming Spirea full then prune them hard removing anywhere from 1/3 to 1/2 of the oldest growth every spring. As the flowers of the summer varieties start to fade you can trim them if you find them to be unsightly without hurting the shrub at all.
Do you have any idea of how often these need to get watered?
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