my plant has been in for a year and when it flowers the flowers seem to dry up and crumble do you know why this is thank you Dot
Most often flowering dying off is due to lack of moisture.
Increasing watering during dry spells and adding 3 to 4 inches of hardwood mulch will help in retaining moisture levels.
This article has more care information.
https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
Hi there -- can firethorn bushes be containerized (larger pots)? Or are they strictly "in-ground?" Can you recommend other perennial shrubs that can be containerized? I have a friend who does well with boxwood and a spruce shrub. I live in Colorado and we have for many years put lots of annual flowers in pots on our courtyard, but the past three years they have all been destroyed by early hail. We are tired of the expense and work of replanting the flowers twice in the Summer, and are seeking alternatives. Thank you! Patricia
Firethorn is actually an excellent shrub in a container. With a little pruning you can even create some interesting shapes. Add a trellis or turret to the container to create an eye catching display.
Here are some links with more information and some other options for your zone 5 garden.
https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
http://www.gardening.cornell.edu/woodies/pdfs/containerculture.pdf
What can I use to treat the white mildew on my Pyrocantha branches..there is a significant amount of it?
These links will help you.
https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm
Hi, I have a Scarlet firethorn (cherri berri) that every year gets beautiful blossoms but never berries. Not even one. Gets required sun and water. The red berries are the reason I purchased this shrub. What do you think is wrong? Thanks
It could be that pests are getting to them bore they fully mature, or even that the plant needs some fertilization. Here is an article that will help: https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
Can the seeds left on the ground start new growth?
More than likely they will not make it to maturity if they do sprout. If you want to keep any that do germinate, then you can dig them out and transplant. Otherwise just kill them off as they pop up.
Here is an article for more information on the care of the plant: https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
That depends on where you live. The seeds require a 3 month cold (39F) stratification treatment in order to germinate. Here is a guide on starting them indoors. http://www.treeseedonline.com/store/p256/Firethorn_%28pyracantha_coccinea%29.html
If you live where winters are cold, you can do the stratification step by placing the soil in bags or any other container outside. Protect from soggy soil and drying out. Container mix should be damp, not wet. Move to a sunny spot when weather starts to warm. The disadvantages of leaving the seed on the ground include loss to critters, insufficient cold temperatures, seed rotting in wet soil and having to dig through tree roots to remove the seedlings at a critical time in their development. Do your own experiment and start some with the process outlined in the link.
My 10 year old bushes are turning yellow and dying.
This could either mean that it needs to be fertilized with a high nitrogen fertilizer, or that the pH of the soil is off. First try putting down some dolomitic lime, and if this does not correct the issue, then fertilize the shrub.
Here is an article for more information: https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm
Will the shrub tolerate Northwesterly winds in Zone 7, or would a Southeasterly position be best?
Pyracantha shrubs are hardy down to zone 6, which means they can take the cold in your zone with no problem, and they're actually very wind tolerant. Your shrub should be able to live in the Northwesterly spot. This article will tell you more about general pyrachantha care:
https://www.gardeningknowhow.com/ornamental/shrubs/firethorn/care-of-firethorn-bush.htm