Kratky Balcony Wind: Wind-Proofing a High Balcony

Basil growing outdoors in a container, exposed to the kind of balcony wind that can tip Kratky containers

Keep containers low, wide and heavy, set them against the wall, and keep everything inside the railing. Kratky balcony wind problems come from tall plants catching the wind, light containers tipping and net cups lifting out of the lid.

Wind gets stronger the higher you go, and balconies on tall buildings can be very windy even on a calm day at street level. Kratky containers are top-heavy once a plant grows, so they need a little planning.

Safety First

Never hang containers over the outside of the railing or stand them on the railing’s top. A container of water falling from a height can hurt someone below. Many buildings ban it. Keep every container and support inside the balcony, on the floor or on a sturdy stand.

Keeping Containers Down

Use wide, low containers rather than tall, narrow ones.
Stand them against the wall of the building, where wind is usually weaker than at the railing.
Group containers together so they shelter each other and are harder to tip.
Set them inside a heavy crate or a larger planter, or strap them to a sturdy stand.
Remember the solution level falls as the plant drinks, so a container gets lighter over the crop just as the plant gets taller.

Keeping Net Cups in Place

A gust can lift a tall plant and its net cup straight out of the lid. Choose net cups with a rim that sits firmly in the hole, and add a foam collar or a snug ring of tape so the cup can’t lift. A lid that clips or screws on stays put better than a loose one.

Windbreaks

Windbreak mesh or garden netting fixed to the inside of the railing slows the wind without blocking all the light.
A row of larger, sturdier pots on the windward side shelters smaller ones behind them.
Check your building’s rules before fixing anything to the railing.

A solid screen can make wind swirl over the top. Mesh that lets some air through usually works better.

Plants That Cope

Good: lettuce, leafy greens, chives and compact herbs, which stay low.
Need support: tomatoes, peppers and cucumbers. Tie them to a stake or frame that is fixed to something heavier than the container.

Wind also dries leaves and makes plants drink more. Check the level more often in windy weeks.

Before a Storm

Move containers against the wall or inside.
Group tall plants’ containers together and wedge them so they can’t tip.
Bring in anything light: empty containers, trays, net cups.

Common Mistakes

Tall plants in light, narrow containers at the railing.
Stakes tied to the container rather than to something heavier.
Loose net cups that lift out in the first gust.

Common Questions

Can I grow Kratky on a very windy balcony?

Yes, with low, wide, heavy containers against the wall and low-growing crops like lettuce and herbs. Use windbreak mesh for more shelter.

How do I stop the net cup blowing out?

Use net cups with a firm rim, add a foam collar or tape ring so they fit snugly, and keep the lid secured.

Can I hang Kratky containers on the balcony railing?

Not over the outside. A falling container of water is dangerous to people below. Keep everything inside the railing.

Related guide: growing Kratky on a balcony or patio.

How Do You Wind-Proof Kratky on a High Balcony?