Camellias do best in light or dappled shade
Promoting flowering requires proper attention to soil condition and fertilizer formula
QWe have two handsome and healthy camellias that have never bloomed in the 10 years we've been in our home. Is there any hope for flowers in the future?
A There are several possible causes for a lack of bloom on camellias.
The plants will not bloom in deep, gloomy shade. Ideal is light or dappled shade.
Another common issue is soil allowed to dry in the summer, when flower buds should be forming. You describe the plants as being in very good condition. That would indicate a good soil quality and adequate, evenly maintained moisture levels. Plants with an abundance of lush green growth and little or no bloom can indicate an over-balance of nitrogen in the soil.
This can result from fertilizing with a product that is mainly nitrogen rather than one designed for use on acid-loving flowering plants like rhododendrons and camellias.
One or two waterings with Alaska MorBloom now and perhaps again in early summer would also be helpful.
It has no nitrogen, just phosphorus and potassium — nutrients that help to promote
flowering. Though you have not mentioned any bud formation on your shrubs, I should add that a very common cause of failure to bloom properly is exposure to morning sun, which can scorch frosted or dew-laden buds or opening blooms.
Q
Can you suggest a mulching material suited for use under and around plants that require an acidic soil, such as blueberries and camellias?
A Fine fir bark, peat moss, pine needles and chopped leaves are all commonly used mulches for plants requiring an acidic soil. It is my preference to mix any of these with compost first, for two reasons: A good compost will enhance the nourishment value of the mulches for the plants and at the same time prevent the formation of a crusted-over layer that sheds water.
Peat moss is especially prone to “caking” over and should not be used alone as a mulch.