If you have a question about gardening in the Birmingham area, ask John. John Floyd has been gardening–and learning about gardening–for more than 30 years. In addition to his day-to-day experience in the garden, John has degrees in horticulture, plant taxonomy, and plant physiology from Auburn and Clemson Universities and was Editor-in-Chief of Southern Living.
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They are considered a late summer to early fall bloomer, so I would feel comfortable cutting them back to mid-summer. This will still give them time to produce flower clusters for fall flowering.
A blast of soapy water that knock the off the leaves is a temporary fix. Most insecticides say they control them but for long term results dust with Diatomaceous Earth.
I think either is ok but the high middle number is phosphorus and our soil are typically high in phosphorus. I would recommend that you use 15-0-15. It will save you a lot of money and will probably get as good or better results.
With that much rain I would not seed the veggie garden until the heavy rains are over. I often time start in pots and then transplant to the garden. I am afraid with that much rain the seed will wash everywhere.
Meyers Garden Center, Hanna’s Garden Shop, and Warren Family Garden Center should be good sources. But, I would call first to make sure they have some that have not over wintered in their greenhouses
Wilson Brothers has good credentials. Have not ordered from them.
It is perfectly fine to shape them and I would do it asap.
After reviewing the product label, I would think you would risk herbicide damage on perennials. Daylilies however was on the approved applications list. If you decide to risk it try a small area and see if it damages your plants.
The average last frost date in our area is April 15
The best product on the market now is Bayer Duel Action Azalea and Camellia product. Caution- wait to apply after flowering as the systemic in the product can be harmful to bees.
First, there are books written on this subject. The library at the Birmingham Botanical Gardens has excellent resources on the subject. My favorite fragrant shrubs include gardenia, wintersweet, anise, banana shrub, and spicebush As for trees Southern Magnolia is tops followed by sweetbay magnolia, and lilac chastetree.
On a very steep slop in shade many ground covers will work but getting them established without causing the bank to erode can be a big problem. Probably the most vigorous on for this type of situation is English ivy and you can by it as sprigs from many nurseries. Others that work would be monkey grass and liriope. They can also be purchased in 4-inch pots. A little used ground cover for this type slope is the small leafed periwinkle (Vinca minor) as it roots when the stems touch the ground like ivy but is hard to find. Probably if you use Vinca you will have to have a friend to give you some. Be sure you plant each pots well and if the soil on your slope is poor amend the soil, mulch with pine straw when planted to prevent erosion. Watering the first year of establishment is a must.
Checking with herbicide specialist. Will get back to you- john
Update- the expert says atrazine
From bud set to bloom is 6-8 weeks. So the later you pinch them back the later they bloom. Most years we do not have frost before early November, so it just depends when you want them to bloom as to when you do your last pinch. Plan on 10-12 weeks after pinching before blooms show color.
While 2,4,D will not kill Centipede and St Augustine it may injure it. So it is up to you,but if dormant it will have less chance of injury.