BHG

Everyday Gardeners

Plant. Grow. Live.

chestnut

Love a Tree Day

Today’s post is in honor of Love a Tree Day, which happens on May 16th every year. (Who knew?) I would write about my favorite tree, but that’s like asking a parent to choose a favorite child. I have dozens of favorites.

With ash trees under attack by emerald ash borer, American elms barely hanging on against Dutch elm disease, and American chestnuts all but wiped out by chestnut blight, I feel that it’s important to create diversity by planting a wide variety of trees.

I’ve taken that to heart in my own landscape. On my half-acre lot I have planted the following trees: a callery pear, a serviceberry, five Alberta spruces, three Austrian pines, three Eastern white pines, a sweetbay magnolia, a Japanese tree lilac, a goldenrain tree, five arborvitaes, eight upright junipers, a dawn redwood, a Vanderwolf limber pine, a black gum, a blue Colorado spruce, a red maple, a weeping European beech, an Eastern redbud, a shingle oak, a ginkgo, a Swiss stone pine, a kousa dogwood, and I’ve allowed a squirrel-seeded bur oak to grow in one of the perennial beds.

This doesn’t even count the trees growing in containers: two Meyer lemons, a Valencia orange, an Oroblanco grapefruit, two bay laurels, and various dwarf conifers.

I’ll admit to punishing several “problem children”. Self-seeded cottonwoods, hackberries, chokecherries, box elders, and willows are removed from my flowerbeds where they all too often take root. I also dig out sprouting black walnuts that the ambitious squirrels bury in the planting beds.

After six years of planting, I think that my lot is about full enough of trees. I still want sunny areas for growing veggies and sun-loving flowers. So from now on, new trees will have to be dwarf. I’m envisioning dwarf conifers in a new rock garden…..


Why Good Potting Mix Matters

Plant on the left was grown in topsoil cut with peat moss; plant on the right was grown in quality potting mix amended with sand and compost.

Plant on the left was grown in topsoil cut with peat moss; plant on the right was grown in quality potting mix amended with sand and compost.

If ever I needed proof that good potting mix matters to plants, I got it last weekend while repotting chestnut seedlings. These two seedlings were grown in the same size pot, in the same lighting conditions, and with the same watering and fertilizing regimen. Yet you can see the vast difference in root development. Plus, the chestnut on the right is substantially taller, as you’ll see in the photo below.

I remember what happened. I had run out of potting mix, so I substituted topsoil for a small number of seedlings. Even after “cutting” it with peat moss, the topsoil was too heavy and thick to be used as a container medium.

Moral of the story: use a good potting mix (here’s one I use) and beef it up with compost (and sand, if you’re working with woody plants). Avoid using topsoil in containers even if it’s amended. Your plants will be larger and stronger. And the more extensive root system will help plants deal with drought and neglect.

Another look at the difference between seedlings grown in topsoil vs. potting mix amended with compost and sand.

Another look at the difference between seedlings grown in topsoil vs. potting mix amended with compost and sand.



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