Mega Twine Clips, 25 mm, Terracotta, 100 Pack

Give Climbing and Heavy-Fruiting Plants Something to Lean On

A tomato plant loaded with fruit or a cucumber vine reaching for the top of its trellis both share the same problem: they grow heavier and taller than their own stems can reliably support. Grodan Mega Twine Clips give those plants something steady to hold onto, clipping around a stem and a stake, trellis, or length of support wire so the plant stays upright as it fills out.

Each 25mm terracotta clip is sized to wrap a stem without pinching it, and a pack of 100 is enough to stake out a full row, bench, or hanging line in one purchase, with extras for new shoots that need tying in later in the season.

Key Features & Benefits

• 25mm terracotta clip design — sized to wrap around a stem and a support structure without cutting into or constricting growth.
• Secures to stakes, trellises, or support wire — adapts to whatever support system the grow space is already built around.
• Suited to tall, heavy-fruiting plants — commonly used with tomatoes, cucumbers, peppers, and similar plants that need support as fruit weight increases.
• Pack of 100 — covers a full row, bench, or hanging line with enough left over for late-season additions.
• Reusable, repositionable fit — adjusts easily as a stem thickens or the plant's shape changes through the growth cycle.

Who Should Use These Twine Clips

Growers training tomatoes, cucumbers, peppers, or other tall and fruiting plants onto stakes, trellises, or support wire are the natural fit for this clip, whether staking a handful of containers or a full bench.

About Grodan

Best known for pioneering engineered stone wool growing media in 1969, Grodan is now part of the ROCKWOOL Group and also produces plant-support accessories like these twine clips for growers managing stem and vine training across a crop.

Frequently Asked Questions

How do I attach a twine clip to a stem?

Open the clip and wrap it around both the stem and the stake, trellis wire, or support line, letting it close snugly without pinching the stem tissue. As the plant grows, reposition or add clips higher up the stem to keep pace with new growth.

When should I start clipping a plant to support?

Start once a stem or vine is tall enough to reach its support structure but before it's carrying enough weight to bend or snap under its own growth. Waiting until a plant is already sagging makes training it back into place harder.

What plants are these clips best suited for?

They're commonly used with tomatoes, cucumbers, peppers, and other tall or heavy-fruiting plants that need help staying upright through fruit set. Lighter, low-growing plants generally don't need this level of support.

Can I reuse a clip on the same plant as it grows?

Yes, the clip's fit is repositionable, so it can be opened and moved higher on the stem or loosened as the stem thickens. This makes one clip useful across most of a plant's growth cycle rather than a single-use item.

How many clips does one plant typically need?

It depends on plant height and how much support the crop needs, but a mature tomato or cucumber vine commonly uses several clips spaced along its length. A 100-pack is generally enough to stake a full row or bench with room for adjustments.