If you’ve ever wandered the aisles of a local grocery store, picked up a wilted bunch of basil that cost nearly three times its weight in plastic, or forgotten to water an indoor herb plant so thoroughly it turned into a crispy version of its former self, you’ve probably daydreamed about growing your own herbs at home. And if you’re scrolling this as someone who’s been in the planter box industry for 12 years, you’ve definitely fielded the question a hundred times: “Can I use a planter box for herbs?” The short answer? A resounding yes—but let’s break down why it works, what makes a planter box way better than random repurposed containers, and how to set yours up so your parsley, rosemary, and mint actually thrive, not just survive. Planter Box
First, let’s get one thing straight: herbs are not high-maintenance, finicky plants. A lot of people treat them like tiny, delicate ferns, but most common culinary herbs—basil, oregano, thyme, sage, and even rosemary—are sun-loving, drought-resistant perennials (or annuals, in colder climates) that evolved to grow in shallow, well-draining soil, usually in rocky, arid Mediterranean regions. That’s where a planter box comes in, way more than, say, a cute ceramic pot with no drainage holes or a bucket you picked up at a construction supply store.
I’ve seen every mistake a new herb gardener can make, mostly because I sell planter boxes to folks who’ve never grown anything before. Last spring, a teacher came to our shop in Portland, carrying a chipped terracotta pot that had killed three basil plants in a row. She told me she watered it every single day, because that’s what her mom told her to do. Turns out, terracotta—while porous—had a tiny crack at the bottom, so water pooled in the bottom two inches of soil, rotting the basil’s roots. A standard planter box, made with durable, food-grade cedar or HDPE (the recyclable plastic we use for our commercial-grade lines), has one or more drainage holes drilled into the base. That’s non-negotiable for herbs. Their roots hate sitting in wet soil; it’s the number one cause of herb death for new growers.
But it’s not just drainage that makes planter boxes ideal. Size matters too, and that’s where a lot of people skip the research. A windowsill herb pot might be three inches wide, which is enough for a single mint plant—until mint spreads, which it does, aggressively. Mint is a rampant grower; it will send runners through soil, out drainage holes, and into the base of your neighbor’s planter box if you let it. A planter box that’s at least 12 inches wide and deep is perfect for mint, because it gives the roots room to spread without taking over your entire garden. For rosemary, which grows into a small bush over time, a 18-inch wide planter box is better than a 6-inch pot—rosemary’s taproot needs space to grow, and if it’s cramped, it will get root-bound and stop producing leaves.
I also tell customers that planter boxes let you control the soil, which is a huge win for herbs. The soil you buy at a big box store is often packed with filler, like peat moss that compacts over time, or sand that drains too fast for parsley. When you use a planter box, you can mix your own: two parts potting soil, one part perlite for drainage, and a tiny bit of compost for nutrients. You don’t have to worry about your garden soil (which might have bacteria or pests) mixing in, especially if you’re growing herbs indoors. I’ve had people come back to me six months after buying a small balcony planter box, saying their basil tastes way better than the store-bought stuff, and they swear it’s because the soil stays loose and drains well, instead of the compacted stuff in their old pots.
Wait, but what about herbs that like different conditions? Some herbs, like rosemary and thyme, prefer drier soil, while basil and parsley need a bit more moisture. Can a single planter box work for all of them? Yes, if you arrange them right. That’s the beauty of planter boxes—you can section off areas with small, movable dividers (we sell thin cedar strips that fit perfectly into our standard planter boxes) to create microclimates. Plant your rosemary and thyme in a spot where they get the most sun, and water only when the top inch of soil is dry. Put your basil and parsley on the shadier side of the box, where the soil stays slightly moist, and water every two or three days. It’s way easier than trying to match a bunch of different pots to each herb’s needs.
Another big plus for planter boxes, especially if you’re growing herbs indoors or on a small balcony, is mobility. All of our planter boxes come with optional casters, so you can roll a 24-inch planter box full of herbs around your patio to follow the sun, or move it inside when there’s a frost. I’ve had customers in Seattle, where the sun is scarce in winter, roll their herb planter box next to a south-facing window so their basil doesn’t get leggy and weak. If you try to move a 5-gallon bucket, that’s a pain. A planter box with casters is light enough to move even if it’s full of soil and plants.
But let’s address the elephant in the room: do you need a fancy, expensive planter box? No, not really. A simple cedar planter box from a hardware store works just as well as a custom one, as long as it has drainage holes and is the right size for your herbs. That said, cheap, thin plastic planter boxes might warp in the sun, or untreated wood might leach chemicals into the soil over time—especially if you’re growing edible herbs. All of our planter boxes are made with food-grade materials, so you don’t have to worry about that. I always tell people, if you’re going to grow herbs, invest a little in a planter box that will last more than a season. It’s cheaper than replacing pots every year because they rot or break.
I’ve also heard a lot of people say, “I don’t have space for a planter box, so I can’t grow herbs.” But even a 12-inch wall-mounted planter box works for small spaces. We’ve sold hundreds of wall-mounted planter boxes to apartment dwellers in New York and Chicago, who hang them on their apartment balcony walls or even inside, next to a kitchen window. You don’t need a big yard to grow herbs—you just need a spot with at least six hours of sunlight a day, and a planter box to hold them.
Now, let’s talk about the mistakes I see people make when using a planter box for herbs. First, overcrowding. I’ve had people cram eight different herbs into a 12-inch planter box, and wonder why none of them grow. Each herb needs air circulation, and if they’re too close together, they’re prone to fungal diseases. The rule of thumb is one herb per 4 inches of planter box width, so a 12-inch box gets three herbs, max. Second, not pruning. Herbs like basil and thyme need regular pruning to keep them from getting woody and tall. When you use a planter box, it’s easy to reach in and snip the leaves, which encourages new growth. A lot of new gardeners are scared to snip too much, but pruning actually makes herbs bushier and produce more leaves for you to use. Third, forgetting to fertilize. Planter box soil runs out of nutrients after a few months, especially if you’re harvesting herbs regularly. I recommend using a mild, organic liquid fertilizer every two weeks during the growing season, so your herbs stay strong.
Wait, what about perennial herbs, like rosemary, that come back every year? A planter box works great for them too, but you need to make sure the planter box is big enough to accommodate their growth. Rosemary can grow up to three feet tall and wide, so a 24-inch planter box is the minimum for a mature rosemary plant. If you keep it in a smaller planter box, you’ll have to repot it every year, which is a pain. We sell larger planter boxes specifically for perennial herbs, so you don’t have to repot as often.
I’ll also share a personal story here, because I think that’s what makes this real. Three years ago, I started a small herb garden on my apartment balcony, using a 24-inch cedar planter box I built myself. I planted basil, mint, rosemary, and thyme. The first year, I killed the basil because I watered it too much. Second year, I learned my lesson, and by mid-summer, I was picking enough basil to make pesto every week, mint for iced tea, and rosemary for roasted potatoes. That planter box is still going strong, and I’m thinking of expanding it this spring to add oregano and cilantro. It’s one of the best investments I’ve made, and it all started with a question: “Can I use a planter box for herbs?”
So, to circle back to the original question: absolutely yes, a planter box is one of the best containers you can use for herbs. It solves almost all the problems new herb gardeners face—bad drainage, cramped root space, poor soil control, and lack of mobility. It’s versatile, works for small spaces, and lets you grow herbs that taste way better than the store-bought ones, without the plastic packaging or the wilted produce.
Whether you’re a home cook who wants fresh herbs on hand, a teacher looking for a classroom garden project, or an apartment dweller who’s tired of store-bought basil, a planter box is the way to go. We have a full range of planter boxes, from small windowsill sizes to large balcony and garden sizes, all designed specifically with herbs in mind. If you’re ready to pick the right planter box for your herb garden, or have questions about size, materials, or setup, don’t hesitate to reach out to our team to discuss your needs and find the perfect planter box for your space.
Outdoor Bench References:
- University of California Agriculture and Natural Resources. (2022). Growing Herbs in Containers.
- American Horticultural Society. (2021). Container Gardening for Culinary Herbs.
- National Gardening Association. (2020). Soil Requirements for Herb Container Gardens.
- Oregon State University Extension Service. (2023). Managing Drainage in Planter Boxes for Edible Plants.
- Royal Horticultural Society. (2022). Pruning Herbs for Optimal Growth.
Shanghai Dishan Xiumei Railing Manufacturing Co., Ltd.
With 20 years’ experience, we are one of the most professional planter box manufacturers and suppliers in China. We warmly welcome you to wholesale customized planter box made in China here from our factory. If you have any enquiry about quotation, please feel free to email us.
Address: No. 2568 Xiangyanghe Road, Qingpu District, Shanghai
E-mail: 13524911319@163.com
WebSite: https://www.dsxmoutdoorliving.com/
