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02 Why won't my rose bloom?




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This article is from the Rose Gardening FAQ, by Bill Chandler chandler@austin.ibm.com, Jolene Adams jolene@cchem.berkeley.edu, Brent C. Dickerson odinthor@csulf.edu, Karen Baldwin kbaldwin@veribest.com, and many contributors

02 Why won't my rose bloom?

Here are some of the reasons that roses don't bloom.

1. The rose plant is not getting enough sun. Roses need at least 6 hours
of direct sun a day to perform well.
2. The rose needs more water. Roses like at least an inch of water per
week during the growing season.
3. The plant has been given too much fertilizer, especially Nitrogen. Too
much fertilizer can either damage the plant or cause it to grow extra
leaves and stems at the expense of blooms.
4. The rose is a new plant. Don't expect too much from a plant during its
first year.
5. Rose is a once blooming variety. This means it will bloom only once a
year in the late spring or early summer.
6. Soil pH is too low or too high. If the pH is not in the range of 6.0 to
6.8 (ideally 6.5) then nutrient uptake will be reduced, and the plant
won't be getting the food it needs to produce flowers.
7. Not enough foliage. If the bush doesn't have adequate foliage, it can't
produce the food it needs to make new flowers. Inadequate foliage may
result from disease or too little fertilizer.

 

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