Zone 4 · Citrus Growing Guide

When to Plant Orange (Navel)
in Zone 4

Classic seedless eating orange. Needs warm days, cool nights, and a long growing season to develop sweetness. Washington Navel is most widely grown. Harvest Dec–Apr for peak flavour.

Plant outdoors
Not suitable
Start indoors
Direct sow
Last Frost
~May 1
Days to harvest
1–2 years to first harvest
Difficulty
Medium
Wrong season — Zone 4
Harvest window: Not suitable

Planting Calendar

In Zone 4, Orange (Navel) should be planted outdoors Not suitable, after the average last frost date of approximately May 1.

Too cold.

Care Guide

Sunlight
Full sun · 8–10 hrs/day
Watering
Regular
Spacing
144–216 inches
Soil
Well-draining, slightly acidic
Days to maturity
1–2 years to first harvest
Soil pH
5.5–6.5
plant tip · Zone 4

Too cold.

Feeding Schedule

How often
3 times a year
Feed type
citrus feed
Key timing
spring, summer, and autumn

Citrus feed with added magnesium and trace elements. Yellowing leaves often indicate magnesium or iron deficiency rather than nitrogen.

Companion Planting for Orange (Navel)

What you plant next to orange (navel) makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Lavender
  • Marigolds
  • Comfrey
Keep away from
  • Grass beneath

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Common questions

In Zone 4, direct sow orange (navel) outdoors Not suitable after your last frost date of approximately May 1. Too cold.
Zone 4 has an average last spring frost of approximately May 1 and a first fall frost around Oct 1. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for orange (navel) include Lavender, Marigolds, Comfrey. Avoid planting near Grass beneath, which can compete for nutrients or attract pests.
Orange (Navel) typically takes 1–2 years to first harvest from transplant or direct sow to harvest in Zone 4. Expected harvest window: Not suitable.

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Orange (Navel) in other zones
Trees & Shrubs