I have a 600mm x 380mm wooden planter on legs (see pictures), with 3m of black gardening cloth (to cover the inside of the box). I'm asking if this is feasible for growing Rosemary? The articles/videos on your website only showed Rosemary in a pot or in the ground. I'm wanting to grow Rosemary for use on food and cooking.
Growing Rosemary in a Small Wooden Planter
Certified GKH Gardening Expert
Though I would say it is possible to grow Rosemary in your planter, I would say it may be difficult.
Rosemary are very sensitive to watering. Too much or too little water and your plant will struggle and can die quite quickly.
This large of an area of soil may be difficult to control the moisture level.
You might be better off planting some additional Herbs for your culinary needs and growing the Rosemary in a pot.
Here are some articles to give you some ideas.
Thank you for your response, you suggest additional herbs would any of these work better? MINT, THYME, BASIL, ARUGULA (Rocket)