May is one of the most exciting months in the garden.
After a long Wisconsin winter, the soil is warming up, plants are waking up, and outdoor spaces start to feel alive again. This is the time of year when even a few simple additions can make a big difference — whether you have a full garden, a few containers, a front porch, or a small sunny corner by the house.
If you’re wondering what to plant in May, here are a few easy ideas to help bring more color, texture, fragrance, and life into your outdoor spaces.
1. Add Herbs for Beauty, Fragrance, and Everyday Use
Herbs are one of my favorite things to plant in May because they are both practical and beautiful.
Many herbs are useful in the kitchen, but they can also add wonderful texture, fragrance, and interest to garden beds and containers. Some herbs are also beautiful enough to tuck into flower gardens or to use in cut-flower arrangements.
A few herbs to consider planting in May include:
Basil
Basil loves warm weather and is a great addition to containers, raised beds, and vegetable gardens. Dark opal basil (love, love, love) is especially beautiful because of its deep purple foliage and can also be used as a striking filler in bouquets.
Mint
Mint is fragrant, useful, and easy to grow, but it does spread quickly. I usually recommend planting mint in a container so it can be enjoyed without taking over the garden.
Thyme
Thyme is a low-growing herb that works beautifully along edges, in containers, or tucked into sunny garden spaces. It adds a soft, tidy texture to the landscape while being useful in cooking and baking.
Sage
Sage has beautiful silvery foliage that adds contrast to garden beds and containers. It pairs nicely with both flowering plants and other herbs.
Rosemary
Rosemary is a wonderful container herb with a clean, classic fragrance. In Wisconsin, it is usually treated as an annual unless overwintered indoors.
Herbs are a simple way to make a garden feel more interactive. You can brush past them, smell them, harvest from them, and enjoy them all season long.
2. Plant Annual Flowers for Fast Color
May is also a great time to start adding annual flowers, especially once the danger of frost has passed.
Annual flowers are the plants that bring a lot of color quickly. They are perfect for containers, porch pots, garden edges, and empty spaces that need a little life.
Some great annual flowers to plant in May include:
Zinnias
Zinnias are cheerful, colorful, and wonderful for cutting. They love warmth and sunshine, and they keep producing flowers through the summer.
Celosia
Celosia adds bold texture and unique color to the garden. It also works beautifully in bouquets and dried arrangements.
Snapdragons
Snapdragons add height and charm to spring and early summer gardens. They are especially pretty in cottage-style plantings and containers.
Marigolds
Marigolds are bright, sturdy, and easy to grow. They work well in vegetable gardens, containers, and sunny borders.
Cosmos
Cosmos have a light, airy look and bring movement to the garden. They are beautiful in cut flower gardens and informal plantings.
Annuals are a great choice if you want a quick refresh. Even one container near a doorway or one colorful grouping near a walkway can make a space feel more welcoming.
3. Use Containers to Add Color Where You Need It Most
You do not need a large garden to enjoy seasonal plants.
Containers are one of the easiest ways to add life to a porch, patio, driveway, front step, or small outdoor area. They are also a good option if you are not ready to commit to planting a full garden bed or want to have a portable option.
A simple May container combination could include:
- One taller plant for height
- One or two flowering plants for color
- One trailing plant to soften the edges
- One herb for fragrance or texture
For example, you could combine basil, marigolds, trailing foliage, and a colorful annual flower for a container that feels both pretty and useful.
Containers are also easy to change throughout the season. You can start with spring plants, transition into summer color, and then refresh again in fall.
4. Fill Empty Garden Spaces with Seasonal Color
May is a good time to walk around your yard and notice where things feel a little bare.
Maybe the front walkway needs more color. Maybe a patio corner feels empty. Maybe a garden bed has a gap where spring bulbs have finished blooming. These small spaces are perfect for adding annual flowers, herbs, or a few perennials.
You do not always need a major landscape project to make your yard feel better. Sometimes, a few thoughtful additions can completely change how a space feels.
Look for areas where you could add:
- A small grouping of flowers
- A container near an entryway
- Herbs near a patio or kitchen door
- A few taller plants for height
- A soft edge along a walkway
- A pop of color near a sitting area
The goal is to make the space feel cared for, welcoming, and alive.
5. Think About Texture, Not Just Flowers
When planting in May, it is easy to focus only on blooms. Flowers are wonderful, of course, but foliage and texture are what make a planting feel full and interesting.
Herbs are especially useful for this because they often have beautiful leaves. Basil, sage, thyme, mint, and rosemary all bring different textures and colors to the garden.
You can also mix plants with:
- Fine, airy foliage
- Broad leaves
- Upright growth
- Trailing stems
- Soft silver tones
- Deep green or purple leaves
When you mix textures, even a simple planting looks more intentional.
6. Add Plants That Invite You Outside
One of the best reasons to plant in May is that it makes you want to spend more time outdoors.
A few pots by the porch, herbs near the patio, or flowers along a walkway can make everyday spaces feel more enjoyable. Your garden does not have to be perfect to be beautiful. It just needs to feel alive, useful, and connected to the season.
May is a great time to start small and build from there.
Add a few herbs. Plant a container. Tuck in some flowers. Refresh one corner of the yard. These little changes add up quickly and can make your outdoor spaces feel much more inviting.