Applying Fertilizers: Timing, Methods, and Tips

When to Fertilize

Fertilize at spring growing season start. Many use a general-purpose fertilizer (balanced or slightly higher nitrogen); others add only nitrogen. Frequency later depends on plant—check specific requirements. Heavy feeders benefit from regular applications; plants from nutrient-poor environments may need only one annual feeding or none.

Tip: Don't apply liquid fertilizer at planting time. Root hairs break during transplant; fertilizer entering broken points "burns" them. Wait 2–3 weeks after planting until plants recover.

Application Methods

• Spading fork: Work dry granular fertilizer into new beds. Puts phosphorus and potassium at root level. Water thoroughly.
• Cultivator: Gently scratch soil beneath surface-rooted plants. Apply dry granular fertilizer, water thoroughly. Spread wide to reach roots beyond drip line.
• Liquid fertilizers: Apply with watering can or injector device through watering system. Simple siphon attachment draws measured fertilizer from concentrate pail.