I wish to move a red Robin Plant to a new area in my Garden during early November
I would, only, move the shrub during mid spring or early autumn. It is likely too late in the year to do so, now.
This article will help you to care for the shrub once it is established:
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
We had abnormally cold weather here and since then I've noticed my photinias are turning brown and losing leaves. Will the spring back from this??
If only the leaves froze, they should drop off and new leaves replace them. If the stems froze, too, you may need to cut them back almost to the ground. If the roots froze, it likely won't return.
You can tell if the stems are still alive by scraping off some of the bark. If it is green below, they should be OK. I don't know how cold it got in your town, but red tip photinias are hardy to zone 6, which means the shrub should be able to tolerate -5 to -10 degrees F.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/rejuvenating-red-tip-photinia.htm
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
https://www.gardeningknowhow.com/ornamental/shrubs/shgen/winter-damage-of-shrubs.htm
It is mid April in Southern California and we are going to plant about 30 red tip photinias for a future hedge. Would it be best to water them with 18” deep watering stakes or just drip lines at the top of the root ball. Also, how often should they be watered?
Here are care instructions for them below. They should be watered moderately but take care not to wet the leaves to avoid fungal diseases. They should be watered on a regular basis and deeply to encourage a deep rooting system.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm
It has a lot of brown leaves.
Red Tip Photinia can withstand temperatures down to -12 degrees C (10 F). So if you had sustained temperatures below that, it may not have survived. You can scratch off some of the stem and see if it is still green underneath. If so, they should come back. Once you are past any more freezes, you can prune off the damaged areas.
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
remove them or can they be treated with cooper funcide 0.08 cooper octonoate or is it a list cause. These plants are 10 feet high and very beautiful and provide privacy around our pool and I hate to lose them.
Actually, this can be prevented, quite easily, with proper maintenance! Treatment is not really effective, unless it is specific (the article included will go over acceptable treatments). Maintaining proper soil moisture and cleaning up and removing all infected materials will prevent future spread.
Should the disease evade the attempt at eradication, then removal and replacement with an unrelated species will be in order.
This article will offer more information on the subject:
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm
I have a Red Robin Hedge that was planted at the front of my front garden. I am unable to trim it or cut it so it is straight. To be honest I am afraid of cutting it too much. But one side of the hedge is higher than the other. How can I get the lower side to grow higher or trim the higher side lower so it looks better? I would like in the end to have all the hedge at the hight of the highest side approximately. Any help would be appreciated. Thanks
Unfortunately, constant pruning may be your best option. In my area, pruning these is a careful chore. In your part of the world, you don't have to worry as much about Photinia Leaf Spot disease. So, you can prune a little less carefully.
This article will help:
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/pruning-photinia-shrubs.htm