A simple plugin that lets you remove the block that a plant is on, without breaking the plant. The plant will stay floating in the air, and you can place a new block under it. This also works on blocks like doors, where they are usually required to have a block underneath.
This plugin is mainly for 1.12 servers, although might work on other versions, although it hasn't been tested on other versions.
Commands:
/pa info
/pa enable
/pa disable
Permissions:
plantanywhere.info - Allow access to /pa info page.
plantanywhere.enable - Allow access to enable and disable commands.
Recommended use is to keep disabled (/pa disable), unless you're building or you know what you're doing. Redstone is enabled in the recent update, but if it's still glitchy, use /pa disable.