Duke's Garden Blog

Garden Tips by Duke

Zone-specific guides, plant diagnostics, and seasonal advice — all tested in real dirt. Updated weekly.

Zone Guide

Zone Guide April 15, 2026

When to Plant Tomatoes: Complete Guide by USDA Zone (2026)

Plant tomatoes indoors 6–8 weeks before last frost. Zone 7 gardeners should start seeds by mid-March for June transplanting.

Pest & Disease

Pest & Disease April 12, 2026

Yellow tomato leaves usually signal nitrogen deficiency, overwatering, or early blight. Here's how to diagnose each cause fast.

Tools & Gear

Tools & Gear April 10, 2026

Garden Copilot leads our roundup of AI gardening assistants with zone-aware calendars and real-time photo diagnosis.