Why I would not plant a tomato (or pepper) in March in my NW Arkansas garden.
It is late March in Northwest Arkansas, with temps in the 70s, sunny skies and spring fever hitting hard. Plants are in front of stores and garden centers are buzzing. Everyone wants to plant NOW.
Although I have seen many peppers and tomato plants for sale, I would not buy one or plant it in March.
As beautiful it is today, next week will have three mornings at 40 degrees or below. Yes, that is above freezing, but many tropical plants will die at higher temperatures. Tomatoes should be planted when evening temperatures reliably stay above 50 degrees. Studies say even if the tomato plant looks OK, growth can be stunted when planted before the soil warms up.
Yes, it is hard to resist. Here are a few things to do instead.
- Watch for Blackberry Winter. It’s a thing – practically every year. When the blackberries bloom in early spring, a late cold snap or a frost hits. The average last frost date in Benton County, AR, is April 19 and my blackberries have not bloomed yet, so there is a good chance April will have some chilly nights.
- Be a rebel - buy the tomato anyway and plant it. You are not risking your children’s inheritance and getting your hands dirty is therapy, so if you want to do it, do it. The biggest commitment is the space in your garden, which could be producing greens and vegetables in April instead.
- Plant cooler season vegetables now and harvest those until you plant the tomatoes (and peppers) later. There are radish seeds that can be harvested in only 24 days, baby spinach that can be harvested in 28 days, and lettuce and spinach plants for sale, so you could get a crop in before planting your tomatoes. Win/win. I must admit, when spring fever hits hard I sometimes buy a six-pack of lettuce for instant gratification. Lettuce in greens, burgundies, and with speckles look so pretty in a freshly prepared garden bed.
- March is a good time to plant potatoes. onions, or fruit plants like strawberries and blueberries. There’s plenty of food crops you can be planting now.
- Are you upgrading your big pots on the front porch? Move the old containers to a sunny side yard and plant potatoes, strawberries, or herbs in them.
- Use this time to build raised planting beds and enrich your soil.
Mark your calendar for the 2025 Benton County Master Gardener Plant Sale on Friday, May 2 (8 am – 5 pm), and Saturday, May 3 (8 am – 1 pm) at 2602 SW D Street, Bentonville (behind Helping Hands Thrift Store). The Benton County Master Gardeners are growing many varieties of tomatoes that will be ready for you when the soil is. Seriously – my new Clyde’s Garden Planner from Baker Creek Heirloom Seed ($5.50, free shipping!) suggests tomato plants go into the ground in early May. Buy them at the plant sale and you are good to go. You can also chat with Master Gardeners while you shop and find perennials, herbs, other vegetables, and more there. Friday morning has the best selection by far.
May your tomato crop be stellar!



