I am thinking it would be best to dig and divide in the spring before or as leafing begins. I have been dividing hostas for years, and have so many that it is time to separate and sell alot next spring. Ideally, plan on dividing hostas before spring or fall rains arrive. Dig up the entire clump as soon as the leaves begin to emerge. One of the best times of year to divide and transplant hostas is early fall or spring. Slow release fertilizers can also be used to meet nutrition needs throughout the growing season. How to Divide Hostas. The best time to divide and conquer your hostas is at the end of summer, around August or the start of September. Hostas are beautiful lush green plants than trive in the southern region. Dividing Hostas in the springtime is easiest for the gardener, transplanting them at the end of the summer is easiest on the plants. Use a shovel to loosen the soil around the ⦠The answer is there are two periods of the year when division is best carried out, Spring and Autumn. The best time is in the spring when the snouts are a few inches above the ground but there are no open leaves yet. Looking at how small you cut those hostas , I guess I can cut more pieces from ⦠Hostas can be divided later in the season, although they may show more damage for the rest of the season. Planting hostas with white variegation next to hostas with gold variegation is a visual no-no. And regarding your âvery largeâ hosta, the best time to transplant/divide is in the fall, which will give the plant time to re-structure itself into its natural, fully-circular format. However I also think it is safe to transplant in late August or September. That's when you can see what you're doing and get a spade in with the least damage. The best time to divide and transplant hostas is in August or September, about a month before your first frost date. Likewise, dieramas resent disturbance and will take time to flower again after division. midnightsmum (Z4, ON) 12 years ago. One is a very thick hosta. Since most other plants in this bed are toast, Id like to divide it. (The emerging leaves are bullet-shaped and are often referred to as points or noses.) of 10-10-10 per 100 sq. and my first "Great Divide" went well. Dig up the clump. Division is best in the spring when the shoots are first emerging. This takes the stress off the plant from the heat, and allows the roots to start to recover without worrying about supporting the leaf growth. Many people don't know exactly when the best time to divide their hostas is. Without the benefit of a soil test, apply 1/2 lb. Here are the advantages and disadvantages of dividing hostas in each of those three seasons: Spring. However, if you are not able to at this time, you can divide them at any time between Spring and Autumn. The base is about a foot across. There's a vast range of cultivars to choose from, with leaves in all shades of green, as well as dusky blues and acid yellows, sometimes variegated or flashed with cream or gold, ruffled, smooth or distinctively ribbed. How To Split Garden Landscaping Succulents Divider Backyard Good Things Landscape Gardening Patio. Usa a garden fork and loosen the soil gently right around the hosta clump then gently place your fork in below the clump and lift it up give it a shake with the fork to loosen the soil. I ended up with about 6 baby plants per clump (and all are still doing well!) Article by Hometalk. Spring is the best time to divide or transplant. In most regions, if you can time it right, plant to transplant hostas before seasonal rains arrive. Blooms Lavender in summer Light 2 to 4 hours of shade Size 2½ ft. tall by 5 ft. wide âOne Manâs Treasureâ hosta. Hostas are really tough plants dig it up and divide by either putting two spades in back to back and forcing apart, or cut a chunk off with a hacksaw or sharp knife. To divide hostas: Start in spring once the âeyesâ or growing tips start to emerge from the ground. Hosta undulata Mediovariegata. When is the best time to divide hostas? Hostas respond well to early fall division because: Fall growth spurt: When the midsummer heat eases off and rains return, hostas often have a growth spurt. Lift and divide congested clumps of hostas in spring or late autumn; Hostas with tough, fibrous roots can be divided with a sharp spade, slicing the clump in two; Large clumps can be split further to leave sections containing five or six shoots Good video. Dig up the entire root ball. Though you can actually plant hostas anytime from early spring to late summer, and right up to 30 days before the first frost in fall, spring is still the best time to get them in the ground.