About the dryad's planter boxes ...

[Sharktrooper]

Do I have to place them in the right biome or can I place them anywhere in order to make the plants grow?

[Rellik66]

Can be placed anywhere.

[Boiledteabag]

Originally posted by Sharktrooper:

Do I have to place them in the right biome or can I place them anywhere in order to make the plants grow?

Some plants need special conditions to bloom like a small layer of water/lava(fireblossom+waterleaf) and day and night etc.

I think one may need a moon event to blossom too.

[WingedKagouti]

Originally posted by YordlePhobia:

Originally posted by Sharktrooper:

Do I have to place them in the right biome or can I place them anywhere in order to make the plants grow?

Some plants need special conditions to bloom like a small layer of water/lava(fireblossom+waterleaf) and day and night etc.

I think one may need a moon event to blossom too.

You may wish to update your knowledge of the blooming conditions for the various plants.

Waterleaf now requires Rain to bloom. Fireblossom will bloom from 3:45PM to 7:30PM unless it's raining. Deathweed now blooms both during Blood Moon and Full Moon.

Originally posted by Sharktrooper:

Do I have to place them in the right biome or can I place them anywhere in order to make the plants grow?

Note that you need seeds to get the various plants. The planters that the Dryad sells are basically a combination of a Clay Pot and a Platform, but visually themed towards the 7 different herbs. Their only functional benefit over using a Clay Pot + Platform is that they take up less vertical space.

You can plant Deathweed in a Blinkroot Planter and it will grow as usual. Fireblossom will mature just fine if you use a Shiverthorn Planter.