8 Common Mistakes New Gardeners Make (And How to Avoid Them)

Starting a garden in the Four Corners region brings unique challenges. The high desert climate of southwestern Colorado creates growing conditions that surprise many newcomers. Understanding what trips up most beginning gardeners can save you time, money, and frustration.

1. Ignoring Your Hardiness Zone

The Four Corners region spans multiple USDA hardiness zones, and planting something meant for a milder climate sets you up for disappointment. Southwestern Colorado gardeners typically work in zones 4-6, where winter temperatures can drop well below zero. Choose plants rated to survive your coldest winter temperatures. 

There can be a lot of variability within these zones – Microclimates can exist within every zone. The experienced staff at Four Seasons Greenhouse & Nursery can help you identify your specific zone and select plants with the best chance of thriving in your yard.

2. Overwatering (Or Underwatering)

New gardeners often kill plants with kindness by watering too frequently. In our arid climate, it seems counterintuitive, but overwatering causes root rot and fungal problems. Most established plants need deep, less frequent watering rather than daily spritzing. Stick your finger two inches into the soil. If it’s moist, wait to water. Container plants dry out faster than in-ground plantings and need more frequent attention. Keep in mind that newly planted specimens require more careful monitoring until their roots become established.

3. Crowding Plants Together

Seed packets and plant tags list spacing requirements for good reason. Cramming plants close together creates competition for water, nutrients, and sunlight. Crowded conditions also reduce air circulation, inviting diseases like powdery mildew that plague gardens in dry climates with cool nights. Give plants room to grow, even if your garden looks sparse at first.

4. Neglecting Mulch

Bare soil is a missed opportunity in the Four Corners region. A 2-3 inch layer of mulch conserves moisture, moderates soil temperature, suppresses weeds, and breaks down to improve soil over time. Keep mulch a few inches away from plant stems to prevent rot. In our climate with intense sun and dry winds, mulch is essential rather than optional.

5. Using Poor Quality Soil in Containers

Filling pots with dirt from your yard creates drainage problems and introduces weed seeds and diseases. Container plants need a well-draining potting mix formulated for pots. Garden soil is too heavy and compacts in containers, suffocating roots. Quality potting mix costs more upfront, but makes the difference between plants that struggle and plants that flourish.

6. Planting Only What You See at Big Box Stores

Large retailers stock what sells nationally, not necessarily what grows best in southwestern Colorado. Many varieties available at big box stores aren’t selected for high altitude, intense UV exposure, and temperature swings. Local nurseries like Four Seasons Greenhouse & Nursery carry plants suited to regional conditions and can guide you toward varieties that perform well here. Their staff knows which tomato varieties ripen before the first frost at the end of the season and which flowers handle our intense sun.

7. Skipping the Learning Curve

Gardening skills develop through experience and education. Many beginners expect immediate success without investing time to learn. Take advantage of resources designed to help you succeed. Four Seasons Greenhouse & Nursery offers classes throughout the year covering topics from seed starting  to success in the southwest. These classes provide hands-on knowledge specific to gardening in our region.

8. Giving Up After One Bad Season

Weather, pests, disease, or simply bad luck can derail even experienced gardeners. One tough year doesn’t mean you lack a green thumb. Every gardener loses plants. Learn what went wrong, adjust your approach, and try again. Gardening in the Four Corners requires patience as you learn what works in your specific location.

Growing Your Gardening Skills

Avoiding these common mistakes gives you a head start, but gardening is learned by doing. Start small, pay attention to what your plants tell you, and ask questions when needed. Local nurseries provide knowledge that internet searches can’t match because they understand the specific challenges of gardening in southwestern Colorado.

The high altitude gardening season may be short, but growing your own food and creating beauty in a challenging climate makes every effort worthwhile.