What Are Plugs?
- Plugs are young plants grown in seedling trays from seeds. They are similar to seedlings but are grown in individual cells of peat or potting mix. Their roots form a neat established bundle around the soil, which allows them to be popped out of the cell and planted with ease. Smaller plugs can be transplanted into pots, bags or trays and will continue growing until at an appropriate size to plant out. Larger plugs can be planted straight into the ground.
What Are Liners?
- Liners are grown in strip trays or standard greenhouse trays with individual cells similar to plugs but larger. They are usually grown from cuttings rather than seeds. Liners can be transplanted into pots for further development or, if large enough, they can be planted straight into the ground.
How to Care for Them?
Why Use Plugs and Liners?
- Producing plugs and liner seedlings is more efficient than producing seedlings, in terms of greenhouse heating and labor costs. The plants are stronger and more uniform than seeds placed in the ground, which are prone to disease and the elements. They offer convenience and instant results, making them great for landscapers. It is easy to identify weeds around the established plugs and liners. They are great for beginner gardeners.
- The growing matter that the plugs and liners grow in must be fertile. Plugs and liners should be acclimated for a day or two outside in a sheltered spot before planting in the ground, to "harden them off." Do not plant on a hot sunny day, as this will put undue stress on the plants. Water moderately until established; do not let the plants dry out but do not drench them.