What type of sun exposure do Catmint prefer? Soil type? Maximum size for them?
This plant is extremely easy to grow. It requires full sun to partial shade and average, well-draining soil. Catmint does require lots of space to grow and are aggressive growers, crowding out other plants if given the chance. Therefore, surround it with a border edging or use containers (bottomless if in garden).
Catmint is usually grown from seed and sown in the garden during spring, spaced 12" apart. While size varies with variety, it can reach between 1-4 feet high with a 1-3 foot spread.
I planted new catmint plants in July, about a month ago, when should I trim the plants, still this summer or wait till fall? How much water is needed for new plants? Thank You
This is a focus plant on this site but I have provided the link to it.
https://www.gardeningknowhow.com/edible/herbs/mint/catmint-plant.htm
I have catmint in my garden in NY, where I live in the country and where deer are plentiful. The deer do not touch the catmint, although they happily munch on other plants in my garden. I love this plant because it is as reliable a plant as there can be. It does not require any maintenance and establishes and propagates very quickly–so quickly, in fact, that it probably qualifies as being invasive. I am ok with its invasive nature on my property because I have four acres of hillside to cover, so it fits my needs well, but you may want to take care when considering this plant for your garden.
While no plant is 100% deer proof, catmint does seem to deter deer most of the time, along with other fragrant plants. And yes, they are also aggressive growers too.
Will cutting back catmint during or after bloom encourage reblooming?
Why does the foliage all look so dead on my catmint plant after blooms fade? The plant looks healthy and beautiful in the spring and around and of June they look horrible. All leaves start to turn brown and crispy from the bottom up.
I just actually walked around the garden where I have my Catmint planted!
After the flowers have faded I find that the foliage also begins to fade. I cut my plants down to about 8 inches from the ground.
I have been able to encourage a 2nd blooming from my plants the last two summers by doing this.
You could give the plants a light feeding of an all purpose fertilizer after cutting back.
Here is a link with growing information.
https://www.gardeningknowhow.com/edible/herbs/mint/catmint-plant.htm
Do you have to pre-moisten the seed before putting in the soil? In general, what is the right way to start from seed with catmint?
No you do not need to soak the seeds prior to planting.
Press them into the moistened soil and keep them moist until germination.
https://www.gardeningknowhow.com/edible/herbs/mint/catmint-plant.htm
My nepeta, which is often robust and covered with flowers, has this year become sparse with yellow leaves at the base. What am I doing wrong?
Yellowing of the leaves at the base along with poor growth can indicate nitrogen deficiency, or less commonly, magnesium or potassium deficiency. Try supplementing with a fertilizer that provides these nutrients. Conventional and organic options are available in gardening stores.