Return to the Herbs Forum | Post a Follow-Up

 o
Just bought some Xeric type herbs...

Posted by equinecpa 7 (My Page) on
Fri, Jul 30, 10 at 22:26

I just bought some Mexican Oregano (Poliomintha Longiflora), Mexican Marigold Mint, Lavender Provence and tricolor sage, all pretty xeric type herbs.

I live in Texas just north of Dallas, with forecasted temps this weekend over 100, with no rain in sight. These plants are in 4" pots. My goal will be to plant some in containers and others in the garden.

My questions:

Do you think I should plant them all in containers for now until the scorching heat passes? They are quite root bound. I was thinking perhaps 1 gallon containers until about September? I'm planning a mix of our native soil (sandy loam) and perilite with broken terra cotta in the bottom of the pots for drainage.

If I do that how would you water these herbs? Allow them to dry out between waterings? I recently lost Lavender and sage that were in pots -I think torrential rains then scorching heat fried their roots. I don't want that to happen again. However I'm never very confident of just how often to water my herbs. Does drying out between waterings mean dry for a few hours, dry for a day...when plant looks wilty? What are signs an herb needs water?


Follow-Up Postings:

 o
RE: Just bought some Xeric type herbs...

If you are looking at some extreme weather, keep your plants in the pots they are currently in and locate to a sheltered location outside. In your case, probably not in the sun. Probably a shady location. When the heat passes and your plants have become acclimated to your conditions, plant them.

When plants looks wilty because of lack of water, it's past time to water them. Some plants look wilty when it is really hot, but they recover when the heat passes. You may wish to find out from other gardeners in your location how much they water xeric plants. I live in NY State and my conditions are VASTLY different from yours so I can't suggest anything from my experience.

FataMorgana


 o
RE: Just bought some Xeric type herbs...

To tell if a plant is wilting from lack of water Ive been told to look at it very early in the morning, 5 or 6 a.m. or whatever is convenient for you. At that hour, at least in my climate, its not wilting from heat. If its wilting the leaves are going to feel soft & limp. You can help the plant by watering just before it goes limp. I feel the soil but I mainly feel the leaves. If the leaves have water in them they will feel stiff & "crispy" or "springy" at 6 a.m. the plant does not need to be watered.

However, if the soil is dry or sort of dry & the leaves are starting to go limp, I make a mental note at 6 a.m. that I need to water it. If its a plant that gets morning sun, I dont actually water it until the suns off it in late afternoon. If its a plant thats going to be in the shade all morning, I go ahead & water it at 6 a.m. because the water will dry by the time the sun hits it & the watering wont burn the plant.

Have you tried the GW Texas forum for advice on when to put in the ground? I've just gotten some plants on sale that I'm putting in good-sized pots until Sept. or Oct. FataMorgana says, "When the heat passes ...." Except she's probably thinking of days or weeks & I'm thinking of months! Good luck!


 o
RE: Just bought some Xeric type herbs...

You shouldn't use your garden soil for container growing. It will turn into something you and your plants won't be happy with in a very short time. Use a peat/bark/perlite combo and forget the chards in the bottom. Things like that don't improve drainage, they just take up valuable space. Use one chard, if you need to, to cover the hole in the bottom. I use plastic needle point grid for that job.

If you decide to purchase some ready made potting medium, try to find something without added moisture crystals, fertilizers, etc. Add a healthy amount of the perlite to it. Then you'll have something with good drainage!

I'd encourage you to judge watering needs by the SOIL, not whether or not the plant is wilting. How often depends upon how much sunlight, if the container is in a hot location (as in reflected heat or light), etc. You'll soon be able to judge.

We're having similar temperatures as you, right now. Horrible. We are watering most plants on a daily basis, though some get it more than that. You need to be generous with the watering. In a good, fast-draining potting mix, all of the excess will empty out rapidly. Then you can judge how long it takes for the soil volume to become somewhat dry. Never totally dry, just not cold and moist feeling. You'll need to use your fingers to judge the soil a few inches deep. Never judge by what the surface looks like.

Watering at mid-day won't burn your plants, but it's not the most efficient time. Early morning is probably best in terms of the plant's well-being.


 o
RE: Just bought some Xeric type herbs...

Keeping the plants in their existing pots wasn't an option (one looked very dehydrated at about noon even though it was well watered the evening before). So yesterday I potted them up in cheap potting soil (it was what was in the shed) mixed with perilite and a bit of compost. I planted 3 plants in a 12" pot I found and 1 in an 8" pot I had. All have lots of holes in the bottom.

I used to have a soil moisture guage and was surprised how unreliable my finger tests were...I guess often the top couple of inches dries out but pots are still moist below. I'm getting another guage. My dilemma is knowing how long to let the soil dry out between waterings? Having been just transplanted these plants are going to be more vulnerable than established plants...I guess let the guage get to dry between waterings?


 o
RE: Just bought some Xeric type herbs...

Well...I went on vacation and I believe all the herbs died in my absence. Temps were over 100 every day. I don't know if they died from stress, drying out or overwatering (one pot was totally dry the other very wet...my homesitter is obviously not a gardener)

I'm just wondering since these are perennials is there any hope their roots might live? Should I cut the brown stalks off and hope for signs of life?


 o
RE: Just bought some Xeric type herbs...

I wouldn't cut anything yet but definitely try some TLC. You've got nothing to loose but some effort on your part.

I hope some come back for you!

FataMorgana


 o
RE: Just bought some Xeric type herbs...

I've had mint totally dry up and crumble.. Kept watering it and it came back. It's always worth a shot . :)

JoJo


 o
RE: Just bought some Xeric type herbs...

One precaution you have to take with potted plants in hot weather is not to let the pots themselves get hot. Wrapping the pots in bubble wrap will help keep them from overheating. The tops of plants can stand a lot more heat than the roots. All of the plants you mentioned will do better in the ground than in pots. Although they will tolerate drought, they will do better with some watering. Sage grows faster with regular watering but the flavor is more intense if kept on the dry side. Mexican oregano needs regular pruning or it will get very leggy with a lot of bare stems.


 o
RE: Just bought some Xeric type herbs...

Thanks for the info hoodat - in hindsight I probably should have kept these herbs inside while I was gone -though they wouldn't have got as much sun their environment would have been much more stable for transplants. I'm going to getting some more in September and I'll bypass the pots and go straight to ground. I seem to have absolutely no luck getting perennial herbs to grow in pots -the annuals seem to do much better in the pots.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Herbs Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here