March in Zone 8 is one of my favorite moments in the garden calendar. Winter is loosening its grip, the soil is finally workable, and the first green hints of new growth are starting to peek through. It's a window of opportunity - a few well-chosen tasks now will set your garden up for a strong, abundant season ahead.
1. Cut Back Ornamental Grasses
If your ornamental grasses have been standing all winter - looking dramatic and frost-kissed in the cold months - March is your moment to give them a proper haircut. Before any new green growth starts pushing from the base, trim last year's foliage down to about 6-12 inches from the ground.
The key trick here is to bundle the grass tightly beofre you make the cut. You can use twine, or even a section of the grass itself works perfectly well. Bundling keeps all that dried material contained so it doesn't scatter across your beds and lawn. It makes the whole cleanup dramatically faster and much less of a mess.
Once you remove the old growth, sunlight and airflow can reach the crown of the plant again. This encourages the fresh new shoots to come in healthy and strong, rather than struggling through a mat of last year's spent foliage.
Xin's Tip: A kneeling pad makes this job so much easier on your knees - especially when you're working close to the ground for any length of time. The Digz Kneeling Pad is a game-changer for tasks like these.
2. Divide Perennials for Free Plants
One of the most satisfying things you can do in March garden is divide your established perennials - and the reward is literally more plants for free. As perennials begin to break dormancy, just beofre they put serious energy into spring growth, is the ideal time to dig them up and split them into sections.
Irises and Shasta daisies are two classic candidates that genuinely benefit from being divided every few years. Left to their own devices, the clumps become overcrowded, and the flowering suffers. Dividing them rejuvenates the whole plant and gives you several vigorous sections to work with.
The process is straightforward: dig up the clump, then use your hands or a sharp spade to separate it into smaller sections, making sure each piece has a healthy rhizome or root system attached. Replant the divisions around your yard wherever you have a gap to fill, or pot them up.
Xin's Tip: I love giving divisions away to friends and neighbors. It's one of gardenings small joys - sharing a plant from your own garden is like passing on a little piece of your outdoor space. And honestly, most gardeners are delighted to recieve a free perennial.
3. Add Compost to Garden Beds
Winter rains are wonderful for your garden in many ways, but they do have a downside: they leach nutrients from your soil. By March, your beds can be looking a little depleated, and this is the perfect moment to replenish them before the big push of spring planting.
Spread a 1-2 inch layer of compost evenly over the surface of your beds. You don't need to dig it in deeply - a light rake to work it into the top layer of soil is all you need. Over the weeks ahead, rain and worm activity will continue to work it down into the root zone naturally.
Compost does so much more than simply add nutrients. It improves your soil's structure, helping sandy soil reain moisture and loosening heavy clay. It also boosts the population of beneficial microbes that make your soil a living, thriving ecosystem - and that translates directly to healthier, more productive plants throughout the season.
Xin's Tip: Worm compost (vermicompost) is particularly potent and fast-acting compared to traditional compost. If you can get your hands on it, it's worth every penny - your spring crops will absolutely love it.
4. Harvest the Last of Your Fall Crops
One of the great perks of gardening in Zone 8A is that many hardy greens carry right through the winter months without skipping a beat. Kale, collards, spinach, and other cool-season vegetables can keep producing beautiful, tender leaves well into early spring.
But March is your last call. As tempuratures climb and day length increases, these crops will shift their energy toward flowering and setting seed - a process called bolting. Once they bolt, the leaves turn bitter and tough, and the harvest window closes quickly.
So get out there and pick what's left. Enjoy those final fresh, cold-sweetened salads and stire-fries. Kale that has been through a frost is especially delicious - the cold converts some of its starches to sugars, giving it a flavor you simply can't find in a grocery store.
Once you've harvested the last of your winter crops, pull out the spent plants, give the beds a good tidy, and add that layer of compost (see Task 3!). Now your beds are ready and waiting for whatever spring treasures you have planted - tomatoes, squash, beans, and all the warm-season crops that are just around the corner.
A little work goes a long way.
March iis one of those months where an hour or two in the garden pays dividends all season long. These four tasks - cutting back grasses, dividing perennials, feeding your soil, and closing out winter crops - set the foundation for a garden that thrives rather than just survives. So lace up your boots, grab your Digz gloves, and enjoy the best month in the gardening year.
Happy gardening!
