What to Start Indoors in March

Your Zone 5 Seed Guide

March is prime time for starting seeds indoors in Zone 5.


Because our growing season is shorter, starting plants inside gives us a head start you simply can’t make up later.


This is the month where momentum begins.


🥦 Start These Vegetables Indoors Now


These cool-season crops benefit from an early indoor start:

• Broccoli
• Cabbage
• Cauliflower
• Lettuce
• Kale
• Onions, if you didn’t start them in February
• Parsley and other early herbs


Starting them now means strong transplants ready to go when the soil warms.


🍅 Toward the End of March


These need slightly warmer timing:

• Tomatoes
• Peppers, if you haven’t already started them


Starting too early can lead to leggy, stressed plants. Timing matters.


🌸 Flowers to Start Now


These slower growers benefit from an early head start:

• Petunias
• Snapdragons
• Salvia
• Pansies
• Alyssum


Starting these now means fuller plants and earlier blooms once planting season arrives.


🌿 Pro Tip for Strong Seedlings


Use a seed-starting mix — not potting soil.

Provide bright light immediately after germination.

Keep soil moist but never soggy.

If seedlings get leggy, it’s almost always a light issue — not a watering issue.


🌱 Keep It Simple


If you’re new to seed starting, don’t overwhelm yourself.


Choose a few varieties you truly love. Build confidence. Learn what works in your space.


Small, intentional steps now make May feel effortless.


A little pruning.
A little soil prep.
A tray of seeds under lights.
A batch of ranunculus waking up in the dark.


This is the quiet work that builds a strong season.


If you need seeds, soil, compost, Proven Winners plants, or want something set aside for spring, call us or stop in. We’re happy to help you think it through.


Let’s build this season the right way.


The Landscape Connection
4472 S. Mulford Rd.
Rockford, IL 61109
(815) 874-8733
www.TheLandscapeConnection.net

By michelle.tlcgiftandgarden March 3, 2026
Learn how to pre-sprout ranunculus in Zone 5 for strong spring blooms. Step-by-step soaking, planting, timing, and storage tips for Northern Illinois gardeners.
By michelle.tlcgiftandgarden March 3, 2026
Pruning in March made simple for Zone 5 gardeners. Learn which shrubs to cut, which to leave, and how to prune without losing blooms.
By michelle.tlcgiftandgarden March 3, 2026
Have you ever looked at a perfect garden online and thought, Why doesn’t mine look like that? You’re not alone. Most of us garden in real life — with real weather, real soil, real time constraints, real budgets, and real limitations. That’s why the Garden Design for Real Life series exists — not to chase perfection, but to build gardens that actually work. Here are the six foundations that matter most as we head into spring. 1️⃣ Start With Your Life — Not the Plants Before you plant a single thing, ask yourself: How much time do I realistically have? Do I enjoy pruning and deadheading — or does that feel like maintenance? Do I want one bed to fuss over and the rest to be easy? If you only want a weekend garden, don’t design a weekday garden. Low maintenance gardens aren’t accidents. They’re built with repetition, dependable shrubs and perennials, and fewer “one of everything” choices. When your garden fits your life, everything gets easier. 👉 Part 1: Designing for Real Life 2️⃣ Soil Is the Foundation This isn’t the glamorous part — but it’s the part that changes everything.
By Michelle Cox January 29, 2026
Support winter birds with easy homemade suet recipes, including bark butter, no-melt suet, and suet wreaths, plus storage and feeding tips.
Crockpot herb oil infusion using dried herbs and olive oil in glass jars.
By Michelle Cox January 29, 2026
Learn how to tell if dried herbs are still good, the best ways to use them up, and simple infusion methods for vinegars, oils, and compound butters.
By Michelle Cox January 29, 2026
A DIY seed-starting how-to for Zone 5 gardeners, including what seeds to start in February, beginner-friendly setup tips, and proven methods for healthy seedlings.
By Michelle Cox December 30, 2025
Winter sowing is an easy, eco-friendly method for starting seeds outdoors using natural freeze-thaw cycles—perfect for native plants and pollinator gardens.
By Michelle Cox December 30, 2025
Learn how to plant and care for a terrarium with simple, sustainable tips that make these mini ecosystems easy to maintain and perfect for small spaces.
By Michelle Cox December 30, 2025
Discover the benefits of houseplants, from improving air quality to boosting mental health and supporting sustainable living—perfect for winter and beyond.
By Michelle Cox December 3, 2025
Brighten your winter with a stunning amaryllis. Learn how to plant, water, and care for amaryllis bulbs indoors—and watch the full how-to video linked inside.
Show More