September Suggestions

ANNUALS

It’s time to clear out your flower beds! Remove summer annuals, add a little manure to revive the soil, and plant your cool-season choices as soon as temps drop to highs below 100 and nights in the low 70’s. Mid-September ought to do it. Once the plants are established, they will tolerate a rise in temperature, but fresh plantings don’t love the blast furnace heat.

Great plants and seeds to look forward to this month: alyssum, arctotis, aster, bachelor’s buttons, bells of Ireland, black-eyed Susan, California poppies, canary creeper, candytuft, clarkia, coreopsis, cosmos, English daisies, forget-me-not, gaillardia, larkspur (a favorite of mine) lobelia, marigolds, morning glory (check for legality in your area, and mind that it is invasive), nasturtium (LOVE these, and you can eat the flowers, too), nemesia, nemophila, nicotiana, pansy, petunia, snapdragon, statice, stock, sunflowers, strawflower, sweet alyssum, sweet peas, sweet sultan, toadflax, wallflowers, zinnia.

BULBS, CORMS, RHIZOMES, & TUBERS

Late this month, look for all the bulb goodies. I prefer to buy from bulb catalogs and online. Also, Costco seems to get nice bulbs in. There is just so much more variety online to choose from than what mediocre selections will be found next to the check-out line at Lowe’s.

If you want to grow hybrid tulips, crocus, or hyacinth by your front door for spring, buy them now to allow plenty of chilling time (in your fridge) before planting. These bulbs must have more cold hours in order to bloom than what we are naturally going to get here in the desert. Also, if you buy amaryllis now, you may have Christmas blooms!

Growing bulbs is not intimidating. They are some of the easiest and most rewarding plants to grow. Just remember, planting depths written on the packaging is for the rest of America. Here, plant them half as deeply as what is stated.

Fun bulbs to look for in September: bugle flower, butterfly iris, cape tulip, freesia, harlequin flower, chasmanthe, Solider-in-the-box, Naples garlic, ornamental alliums. Oh, and potatoes… but I usually list those under veggies.

The list will be really long next month, so save some garden space!

CACTI & SUCCULENTS

Now is a great time to plant the succulents of all types and varieties! Go pick out a lovely agave or funky yucca and throw it in the mix to add stationary strength to the texture of your garden!

FRUITS

Time to plant strawberries! Hooray! I like the Sequoia and Chandler varieties, myself. Give them space, they spread a lot. Also, fertilize your grapevines, but no pruning, yet.

GRASSES

Did I mention that it is time to decide if you are planting winter grass or not? It is. Your bemudagrass lawn is going to start puttering out in October and won’t be back until the end of March. Meanwhile, it is a great time to plant perennial rye for a winter lawn. (Annual rye stains little boy’s knees, and perennial, supposedly, does not.)

Before overseeding, let your Bermuda dry out for a week (or more if you are swampy post-monsoon), then verticut (give it a buzz, not a trim) your lawn and spread rye seed. Keep your rye moist until germination is complete. Remember: a dry seed is a dead seed.

PERENNIALS

It is a good time to mulch your perennials, and late in the month you will see a variety of spring-flowering plants available in the garden centers.

It’s not too late to prune frost-sensitive perennials. Your long to-do list comes next month, so start your yoga now to get ready!

Like annuals, the list of plants is longer next month, so save room, but here are a few that can be planted from seed now: aster, carnation, columbine, feverfew, hollyhock, statice, yarrow.

ROSES

It is time to take a look at your roses. Did they fare well through summer? If not, perhaps you should consider a new location for them. Take a look at your garden and decide where you would like a few more. Late this month they will start reappearing in garden centers. You don’t want to wait too long to plant container-grown roses, as they will need a chance for their root system to become established before the cold nights set in. Don’t trim your beauties yet; wait until the daytime temps are staying below 100 degrees.

TREES AND SHRUBS

Prune only summer-flowering shrubs at this time. For others, wait until October, the busiest desert-gardening month. However, if you have storm damage from the high-winds of the season, prune those puppies now! Don’t wait. Desert-native trees may need pruned in order to prevent breaking branches in the next wind, as well.

This is the month to plant desert-native trees. If it isn’t frost tender, September is a great planting month. Don’t plant deciduous trees now. Wait until they are dormant in a few months. This is the last month to fertilize palms, too.

I recently learned that one of the ways plant disease is spread among shrubs and trees is through pruning tools. I guess that makes sense. We wouldn’t go to a blood-drive where they used the same needle on all of the participants… so it should be with our pruning tools, only we don’t have to replace them after each snip. Carry a bottle of disinfecting wipes in your garden tool tray, and wipe after each cut. Great idea, huh?

VEGGIES & HERBS

This is what I’ve waited all summer for! This season is what makes desert-dwelling bearable for me. Here goes.

When choosing between the many garden varieties of veggies, select short-season varieties that will mature more quickly. This is true all year long, so remember it. For instance: A tomato that matures in 69 days will neither be fried by the heat in the spring garden nor bitten by the cold in the fall garden. Whereas, a 90 day tomato (like beefsteak) will be fried or bitten before it matures, wasting your time, resources, and garden space. Short lived is often more lived.

With the upcoming mild winter, it is a great time to plant cole crops (broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, kohlrabi, etc), greens, and veggies. Keep in mind, if you plant 15 spaces of lettuce in one day, you will have 15 heads ripe and ready the same day. I like to plant mine 3-5 spaces per week over 6 or 8 weeks, to allow continual harvest of the items that don’t keep well and can’t be dried or canned. It is called succession planting and is especially useful with greens in the desert where you can grow them all winter long.

Prune heat and sun damage herbs: geranium, rosemary, lavender, sage, and thyme.

Divide chives, oregano, marjoram, and mint.

Plant and sow in September: anise, bay, beans, beets (a great reliable grower for the kid garden), bok choy, borage, Brussels sprouts, bunching onions (late in the month), burnet, cabbage, calendula, carrots, chamomile, chervil (not to be confused with gerbil), Chinese cabbage, Chinese chives, celery, cilantro, collard, cucumber, cumin, dill (careful, it will take over the world if you let it go to seed), endive, fennel, garlic (late in the month), garlic chives, kohlrabi, lavender, leek, lettuce, marjoram, mustard greens, onions (late in the month), parsley, peas, peppers (early in the month), potatoes, radish, rosemary, sage, sorel, spinach, Swiss chard, thyme, tomatoes (early in the month), turnips

Save room for October’s plantings: close to all of the September plantings (but not tomatoes or peppers), and one of my favorites, ASPARAGUS!