When Should Hydrangeas Be Given Bone Meal?

Bone meal is an organic fertilizer that can significantly benefit hydrangeas’ growth and blooming. It is an excellent natural slow-releasing fertilizer that contains high levels of phosphorus, which is essential for their growth and blooming. Bone meal can be applied to hydrangeas from February to November, encompassing both the pre-sowing period and the growing season. For best results, it should not be the only fertilizer the flowering plants have.

Bone meal takes up to four months to break, so it is best to start fertilizing your hydrangeas in the spring when soil temperatures begin to rise. This sets the stage for healthy growth and amazing blooms throughout the season. Bone meal is a good organic phosphorus source that gives good results, and it helps grow strong roots. Bulbs like tulips and daffodils will produce more blooms, as will any flowers.

For maximum blooms, it is recommended to fertilize your hydrangeas starting mid-May to mid-August. If you use a timed-release or slow-release fertilizer, you can start at the end of winter, when hydrangeas are ending their dormant period. Fish bone meal product, which is high in phosphorus, can also boost your blooms.

Fertilizer with an NPK ratio of 25/5/30 is recommended, so bone meal should be avoided. If your preference is for pink or red flowers, choose a variety that does not contain phosphorus. Phosphorus can prevent aluminum from being used, so be cautious about adding “Bloom” type fertilizers or bone meal, both of which have high levels of phosphorus.

In summary, bone meal is an excellent organic fertilizer that can significantly benefit hydrangeas’ growth and blooming. It is important to use a balanced fertilizer and avoid adding too much bone meal to your hydrangeas.