Yes, lasagna gardening perennial plants work great together once the bed has broken down enough. Perennials need stable soil to set deep roots, so you should wait for full decay before planting them. A bed built in fall is ready for perennials by the next spring or summer.
When I first planted 25 asparagus crowns in a lasagna bed that had settled for eight months, I was not sure they would take. Those crowns grabbed hold fast in the rich, loose soil the layers created. Three years later I harvest spears from that same bed every spring. They grew stronger here than the ones my father put in his clay garden soil.
My strawberry patch started in a lasagna bed too. I added the runners after the layers had broken down for a full season. Those plants spread fast and produced twice the berries I got from the same type grown in regular garden dirt. The organic matter held just the right amount of moisture around their short roots.
Your perennial roots need soil that stays put and holds its shape year after year. Fresh lasagna layers shift and sink as they break down. This can expose your roots or leave air gaps around them. Wait until your bed looks and feels like dark, crumbly soil before you put any perennial in the ground.
Planting perennials in lasagna beds works best when you time it right. Build your bed in fall and let it sit through winter. The freeze-thaw cycles and months of rain break down most of the layers. By late spring the bed should feel soft and uniform with no visible chunks of straw or leaves left.
Mother Earth News reports that asparagus beds built with this method can produce spears for 20 years or more. That makes your lasagna bed one of the best long-term garden investments you can make. The rich organic soil feeds your deep roots for decades with very little extra work on your part.
Asparagus
- Harvest window: Produces spears each spring for 20+ years from a single planting in rich organic soil.
- Planting depth: Set crowns 6 to 8 inches deep in well-broken-down lasagna beds for strong root growth.
- Annual care: Top the bed with 2 inches of compost each fall to keep feeding the deep root system.
Strawberries
- Root type: Short surface roots thrive in the moisture-rich top layers of a broken-down lasagna bed.
- Yield boost: Expect up to double the fruit compared to plants grown in plain garden soil.
- Mulch needs: Add straw mulch around plants each spring to keep berries clean and soil moist.
Rhubarb
- Growth habit: Large leaves and deep roots do well in the loose, rich soil that lasagna beds create.
- Space needed: Give each plant 3 to 4 feet of room since rhubarb spreads wide over the years.
- Longevity: A single rhubarb plant can produce stalks for 10 to 15 years with basic annual mulching.
Add 2 to 3 inches of mulch around your long-term lasagna garden plants each fall to keep the bed topped up. This annual layer feeds the soil and protects roots through winter cold. Asparagus, strawberries, and rhubarb are great first picks for any beginner.
Read the full article: Lasagna Gardening Method in 10 Steps
