Will the brown tips turn green again?

No, the brown tissue is dead and will not recover. You can trim the brown edges with clean scissors for a better look.

Does tap water cause brown tips?

Sometimes, if your water is very high in salts or minerals. Try using collected rainwater if you suspect this is the cause.

Why are my Siebold's Hosta leaf tips turning brown?

Check these first

Check the soil moisture level.
Inspect the area for excessive heat or wind.
Look for signs of salt buildup from fertilizer.

Likely causes

Underwatering
Most likely
How to tell: The soil feels dry and crumbly to the touch. The leaves may also look slightly wilted.
What to do: Water the plant deeply until the soil is moist. Aim for 1 inch of water per week, adjusting for hot weather.
Low Humidity
Possible
How to tell: The tips turn brown even when the soil is moist. This happens during very hot or dry spells.
What to do: Mulch around the base of the plant to help retain soil moisture. You can also water the surrounding area to increase local humidity.

When to worry

Minor browning at the very tips is common in late summer heat. Worry if the brown patches grow large or move toward the center of the leaf.

Stopping it coming back

Apply a layer of organic mulch around the plant to keep the roots cool and moist.

Not sure which one it is? Photograph your siebold's hosta.

This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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Questions people ask

Will the brown tips turn green again?: No, the brown tissue is dead and will not recover. You can trim the brown edges with clean scissors for a better look.
Does tap water cause brown tips?: Sometimes, if your water is very high in salts or minerals. Try using collected rainwater if you suspect this is the cause.