I accidentally over-fertilized some of mine with liquid fertilizer last autumn. I had the brown leaf tips and all because of it.

I watered the heck out of them to rinse as much through the soil as I could. They survived. This spring I put no fertilizer and they are gorgeous and blooming their heads off.

Water, water, water! (good luck!)

The lava rocks get very hot and retain their heat... drip lines might not be enough to rinse out the extra fertilizer... you might wanna lay a hose at the foot of each rose and just let it go for an hour or so...

Pick off the leaves that are toast, Mist the roses in the hottest part of the day, they shouldn't be showing these signs of heat stress when summer hasn't even started yet... although they are new babies, and more likely than older roses to have problems...

Considering the unseasonal heat wave that's taking place in CA right now, heat stress could very well be part of the problem -- esp in view of the fact that your roses are newly planted. The heat, combined with the over-fertilization is a double whammy for sure. Frequent watering is about all you can do.

I'm not so sure, however, that I would mist the roses during the hottest part of the day if they are in direct sunlight when that period of the day occurs. Droplets of water can act as a sort of magnifying glass in direct sun, perhaps making your bad matters worse. I'd mist in the morning and at other times when the plants aren't in intense direct sunlight.

Your roses may be set back a bit by this, but I'm guessing they'll recover. Good luck!

Thanks for the advice. The idea of laying the hose down on them for an hour sounds like a good one but what part of the day should I do that? Morning while they are in the sun or afternoon/evening when it's shaded? Does it matter? Also when picking off leaves should I pick off just the burned individual leaves or the whole leaflet? On a lot of them, the whole leaflet has burning on the leaves. It may not have many leaves left when I'm done, although it does have 2 little buds on it. :) I'm afraid of what my gardener is going to say when he sees them next week, lol

It's OK to water during the day...

"The Myth of Day Watering

Still showing up in some popular garden literature is the notion that "day-watering can burn plants." The notion says that sunlight is "magnified by the water drop on the leaf to cause a leaf burn.

Anyone who ever burned ants using a magnifying glass and the sun knows that the magnifying glass did not burn the ant if it were placed directly on the ant. Rather, it had to be held a distance (focal distance) from the ant to concentrate the sun's rays enough to burn the ant.

If this notion were true, all gardeners would cover all their plants prior to every rainstorm.

Farmers would not be able to prevent widespread "leafburn" after rain clouds gave way to sunshine. The root of this notion may have come from the effects of applying poor-quality water high in dissolved salts. As water drops evaporated from leaves,the salts left behind could cause a leaf burn."

Thanks Mike, I really do feel better knowing that I'm not the only one to burn my beautiful roses. They really deserve much better treatment :) Is there an organic fertilizer that you'd suggest? At the moment I have the Bayers and I think there's some Miracle grow for roses in the garage as well. Also what would you suggest for pests? I've noticed aphids and what I think may be thrips as well. Also something was munching on the leaves of my Peace and orange rose pretty heavily. I found some snails in them, could that be what was eating them? I'm really kinda clueless when it comes to this stuff. Trying to learn as much as I can though as I LOVE roses! I really, really appreciate any and all advice!!

Decobug- I have been misting in the very hot afternoon, I was wondering if that was good or not, Thanks for clearing it up. I figured that it couldn't hurt as they dried fairly quickly with the recent heat!

I would flush them with plenty of water. I also would pick off the burned leaves, if for nothing else but to make the plant look better. I tend to remove anything damaged from my roses, as it prompts them to start growing new stuff. I accidentally burned a few of my roses with fertilizer too, and they are doing fine with this treatment.

Aphids can be hosed off with water, but if you have ants farming them you may need to treat the area for ants if they are really bad. I hate to kill ants though, as many of them are beneficial, but sometimes they push my breaking point. I use insecticidal soap if the hosing doesn't work (but it usually does). Keep in mind that using a broad spectrum insecticide, such as what is in Bayer, will kill all your beneficial insects, and you may end up with worse problems. Florida gets lots of bugs, but since I quit using any insecticides two years ago, I seldom ever have a problem any more. The thrips aren't as bad either. I still get a few, but not enough to bother me. When I used insecticides I always had major issues.

I'd like to add that for those of us that live in very hot climates, using rock as mulch can cause such heat build-up that it will burn the roots. A wood mulch will keep the roots a LOT cooler, and help retain moisture.

Sandy

Thanks for the advice. Unfortunately, as a renter, I didn't get a choice in the rock/mulch debate. There were termites around here before and the landlord chose the rock so as not to tempt the termites back with mulch. Is there anyway to help keep it cooler? Also should just the burned leaves come off or the whole leaflet that has burning? Terminex comes around a sprays for the ants, again though, I don't have a choice in the matter, will it hurt the roses, ya think? Since the bayers has already been used and it lasts for 6 wks will beneficial bugs come back after that time?