Catnip

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  1. Will Old Seeds Produce Stunted Plants?
  2. Flies
  3. Catnip browning
Asked by posskat on May 23, 2011
Will Old Seeds Produce Stunted Plants?

Using the paper towel method to test some older catnip seeds, I selected about 20 seeds that germinated quickly. They grew about 1″, produced 2 sets of leaves, and for over a month now, have not progressed one bit!!  The soil was potting soil from Costco, and they have enough water and lots of sun and fertilized occasionally. What went wrong? The same seeds I used last year, under the same conditions were just fine. My cat is ticked off–any ideas?

ANSWERS
Heather
Certified GKH Gardening Expert

Old seeds will not cause stunted growth but I suspect your issue may be low temps. Seedlings grow faster with higher temps. As cold as this spring has been for many parts of the country, I suspect that your windowsill may be cooler this year than last year, which slows the growth.

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posskat

aha! i just got new seeds, and pulled the others up, as they have made absolutely no progress for weeks on end. i'll get these going, and do a sun dance--maybe we'll get some sun before this fall....thanks

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Asked by Kmmentzer on August 15, 2016
Flies

I have a Catnip plant and it has gotten flower blooms. Now I see flies all over the blooms. Thought this plant repells.

ANSWERS
Alisma
Certified GKH Gardening Expert

Catnip does repel many species of flies, but it is also an insect-pollinated plant and does attract some insect species. The fact that the bugs you see are attracted to the blooms suggests they are most likely pollinators and harmless to your garden.

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Asked by Aprilb24 on September 25, 2016
Catnip Browning

My catnip has begun to brown and I’m not sure why. The leaves are not dried out or wilting, but do not appear to be the healthy lush green they once were. Any ideas on how I can help my plant out? Thanks!

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert

This could be due do a few different issues.
Your plant may be over or under watered. Make sure the soil is moist but never soggy. Make sure your container has adequate drainage holes in the bottom and that they are draining.
Often a container that sits directly on ground may not drain freely. You can sit the container on a few bricks to raise it off the ground.
Nutritional issues in the soil could also cause the color changes in the leaves.
I like to give my Herbs Epsom Salt.
Here are some links with more information.
https://www.gardeningknowhow.com/edible/herbs/mint/catmint-plant.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/calcium-fertilizer.htm

https://www.gardeningknowhow.com/plant-problems/environmental/leaves-turning-reddish-purple.htm

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