Home Back

Johnny Seeds Planting Calculator

Planting Rate Formula:

\[ \text{Planting Rate} = \frac{\text{Area}}{\text{Spacing}} \times \text{Variety Factor} \]

sq ft
sq ft/seed
unitless

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Planting Rate Calculator?

The Johnny Seeds Planting Calculator helps determine the optimal planting rate for seeds based on your garden area, spacing requirements, and variety-specific factors. This ensures proper plant density for maximum yield.

2. How Does the Calculator Work?

The calculator uses the planting rate formula:

\[ \text{Planting Rate} = \frac{\text{Area}}{\text{Spacing}} \times \text{Variety Factor} \]

Where:

Explanation: The equation calculates how many seeds or pounds of seed you'll need based on your garden size and the space each plant requires, adjusted for variety-specific needs.

3. Importance of Planting Rate Calculation

Details: Proper planting rate ensures optimal plant spacing, prevents overcrowding, maximizes yield, and reduces competition for nutrients and sunlight.

4. Using the Calculator

Tips: Enter your total planting area in square feet, the recommended spacing per seed (found on seed packets), and any variety-specific factor (typically 1 unless specified otherwise).

5. Frequently Asked Questions (FAQ)

Q1: Where do I find spacing requirements?
A: Spacing information is typically provided on seed packets or in variety descriptions from seed suppliers.

Q2: What is the variety factor?
A: This accounts for differences in germination rates, plant vigor, or recommended planting density for specific varieties.

Q3: Should I round up the planting rate?
A: Yes, it's generally recommended to round up by 5-10% to account for germination failures and thinning needs.

Q4: How does this differ for pounds vs seeds?
A: For seeds, the result is in number of seeds. For pounds, you'll need to know seeds per pound for your variety.

Q5: Can I use this for transplant spacing?
A: Yes, the same calculation applies when determining how many transplants you'll need for a given area.

Johnny Seeds Planting Calculator© - All Rights Reserved 2025