I have a Red Robin plant in my garden, which over a period of 8 years or so has grown into a 10-foot high tree. It is growing against a wall and in a recent storm with high winds, the bush was bent towards the ground to a point where it toppled over. On examining it afterwards, the stem of the bush is 50% broken across, but it is not entirely broken off. I have raised it back up with supports. Would you think there is any chance that it will survive?
It may survive as long as the stem covering/bark on the intact side has not been too badly damaged. But, the issue will be that the stem will never repair itself to the point that it can support itself. If it survives, it will always need support to keep it upright.
Can I spray my phontinas win the winter?
Dormant spray is really only effective at temps over 45F. You should wait until it gets over 45F to use this on your plant.
What's the best fertilizer for photinias and Texas privet plants? Also, what is the best month for pruning?
An even fertilizer (8-8-8 would be fine) would be good. Fertilize once in spring and once in early fall. Prune from early spring through fall--photinia best done in early summer.
When is the best time to prune photinias? And, how much should be pruned. Mine is very tall.
Prune photinia sometime during early spring through early fall--late spring, early summer being the best time. Unruly plants can be cut back 6 inches to the ground and will come back--annual pruning will help keep them maintained and manageable. They can take a pretty severe pruning, so you can cut them back to a manageable size without harming them.
I have to severely cut back a 30-year-old, 16' high photinia after a tree fell and broke the trunks. I have cut four trunks (on south side) to 4' high and left four intact trunks. 1. How can I best spur the growth on the cut trunks? 2. Would putting some growth hormone on the cut trunks help? 3. Any special fertilizer for regrowth?
Your best fertilizer will be one that is higher in nitrogen. Nitrogen spurs foliage growth and will encourage it to grow faster.
Since the plant was badly damaged, a fertilizer with essential micro-nutrients would be helpful as well.
The cut branches will probably grow back quickly on their own and rather thickly. Keep an eye on this as you may need to thin out new growth on those branches in order to have a healthy plant.
What spacing should I have between photinia bushes?
You want about 6 feet between them for normal plantings. If you want to create a hedge, then place them about 3-4 feet apart.
Is it harmful to trim red tips in the spring?
Spring is a great time to prune red tips.