Protecting Plants from Cats

Wardie meets Lily by pierrotsomepeople (on flickr)
Wardie meets Lily by pierrotsomepeople (on flickr)

TheGardenLady received this question from Tiffany.

I recently purchased two three foot tall peace lillies and my cat keeps chewing the leaves. How can I stop the cat from eating the leaves without damaging the plants?

From your question it doesn’t seem like the cat is using the plant soil as its kitty litter but is eating the leaves. So this column will not give suggestions on how to keep cats from digging in the soil.

If the cat eats the leaves of the plant, there is the possibility that the cat is missing some nutrient from its diet. Have you tried to plant catnip? Cats love catnip. They go crazy for it. So perhaps if you plant some catnip for the cat, the cat will forget the peace lily and go after the catnip. Buy a cheap dish drainer to cover a pot indoors or on the spot it is planted outdoors. An example of a dish drainer is on Amazon.com here, but I would see if I could find one in a garage sale. Why waste money on an expensive dish drainer? The catnip will grow through the openings of the dish drainer but won’t let the cat pull the catnip out by the roots and the dish drainer won’t allow the cat to knock over the pot. Try to start a few different catnip plants around the house to distract your cat.

Another option is to buy catnip toys to switch the cat’s behavior to play with toys rather than your plants.

Another option is to have a spray bottle of water or a water pistol and when you see the cat chewing on the leaves of the plant to spray the cat with the water and hope the cat learns the lesson that it is not to eat the flower leaves or it will get sprayed. Cats don’t like to be sprayed with water. But one has to be consistent and whenever you catch the cat in the plant surprise it with the water spray. But don’t use anything stronger than water to spray at the cat.

You can also try making a loud noise when you see the cat going for the plant. Cats have sensitive ears and will learn to avoid the plant if each time it goes near the plant it hears the noise. But again, you have to do it each time it approaches the plant.

Another option is to spray the plant (not the cat) with a solution of cayenne and water or sprinkle the plant with a mixture of 2 parts cayenne pepper,
3 parts dry mustard and 5 parts flour . Sprinkle it on any plant you don’t want the cat to eat. Reapply periodically. If using it outdoors, reapply after a rain.

TheGardenLady read that cats do not like the citrus smell, so if you place some lemon peel or any other citrus peel on the soil of potted plant, the cats should leave the flower alone. Reapply periodically.

Good luck with training your cat. Let the readers know if any of these suggestions worked for you.

Pine Needle Mulch

Pine needles for blueberry mulch by greenwalksblog (on flickr)
Pine needles for blueberry mulch by greenwalksblog (on flickr)

TheGardenLady received this question from June.

Would potatoes like a pine needle mulch?

According to Clemson University Extension, pine needle mulch is good
for potatoes.   See here.

Tip: Pine needles and coffee grounds make great mulch for acid-loving
plants, such as rhododendrons, azaleas, blueberries, raspberries,
strawberries and potatoes.

Please let TheGardenLady know how you make out with pine needle mulch.

Is There A Weed Killer That Does Not Kill Moss?

 moss garden by akaitori (on flickr)
moss garden by akaitori (on flickr)

TheGardenLady received this question from Claudia:

Every weed killer that I have located includes moss as a weed so it kills the moss too. Is there a weed killer that does not kill moss?

In one public garden with moss that I visited, I asked this very question. They said they got down in the moss and carefully plucked out all the weeds by hand using some type of tweezers. Moss has no roots. So if you pull some up just push it back in the spot it came from.

Moss loves acid soil- a ph of 5 to 6 is what mosses prefer. Weeds tend not to like soil with such a high acid content. So when the moss is in its preferred environment then it grows vigorously enough that weeds won’t be a problem. In fact you might be surprised that acid loving native plants take root in the soil even if you hadn’t planted them. They come into the moss environment like weeds. You can try adding wettable sulphur to the areas where the moss is weedy – add 1/2 the amount that is on the bag directions and put it in a small, test area to test if it works.

If you have weeds that you can’t hand pull try spotting the weeds with ” Weed Be Gone” or ” Round up”. Use these products in a small test area first to see if it doesn’t burn the moss. Then if it doesn’t burn the moss, you can use these products in other areas.

One of the best places to buy moss and moss products like the wettable sulphur is from Moss Acres. Moss Acres offers a wide range of soil amendment products to lower pH. They also will answer moss questions.

The owner of this company, David Benner, has the loveliest moss garden that is open to the public for a few days every May. Try to visit this garden and ask the tour guide, either David or his son, moss questions.

Are Clematis and Lilacs Acid Loving Plants?

Clematis by love_child_kyoto (on flickr)
Clematis by love_child_kyoto (on flickr)

TheGardenLady received this question from Denys.

Are clematis and lilac plants acid loving plants?

Clematis likes soil that has a pH close to neutral (6.6-7.0). You have to add enough lime to ensure that your soil is not too acidic.  Generous amounts of bone meal and compost should be added to the soil. Clematis likes soil that drains well, so coarse builder’s sand should be added to soils that have a high clay content.

Lilacs also like a rich, well-drained soil with a neutral pH. They will grow happily in soil with a wider pH range- from 5.8-7.8 pH.

If the writer of this question is from the New England area where soils are often very acidic, soils will require modification for optimal lilac or clematis growth.

But do not try to change the pH of your soil by guessing. If you live in the US., contact your county agricultural extension service or your local Master Gardener Office for soil-testing information. You will get a soil testing kit that you will fill with soil for the test and when the results are returned, you will learn if your soil needs to be altered. The test results will be sent to you with instructions for altering soil pH to meet the needs of your plants. And if you don’t understand the instructions, you can visit the Master Gardener Office where the Master Gardeners will explain the instructions to you.

Getting Rid Of The Horned Worm Caterpillar

Horned Worm Head by EriMax (on flickr)
Horned Worm Head by EriMax (on flickr)

TheGardenLady received this question from Katherine.

Is there anything I can do to keep the horned worm caterpillar off of my tomatoes? I really hate those little things. My kids pick them off, but most of the time they are hidden and I can’t see them!

You may know that the horned worm caterpillar is the immature stage of
the hawk moth. It goes through a few stages, but the most damaging stage is the caterpillar stage.

Some suggestions to get rid of the pest:

Rotate the place where you plant your tomatoes. Don’t plant tomatoes in the same place every year. If you plant them in the same location year after year, insects and diseases build up in the soil which can cause problems. For example, the hornworm larvae burrow into the soil to pupate.

Remove crop residues from last year and keep the area clean of weeds. Both can encourage insects to hide, lay eggs and grow.

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