Pear Trees – The Sad Tomato

Complete Guide to Growing Pear Trees

1. Choosing the Right Type of Pear

There are two main categories:

European Pears

Examples: Bartlett, Anjou, Bosc

Softer, buttery texture; harvested when mature but ripened off the tree

Require cold winters (Zones 4–8)

Asian Pears

Examples: Shinseiki, Hosui, 20th Century

Crisp like an apple; ripen on the tree

Better suited to warmer zones (Zones 5–9)

2. Tree Size Options

Type	Height	Notes
Standard	18–25 ft	Long-lived, large space needed
Semi-Dwarf	12–18 ft	Easier maintenance, moderate yield
Dwarf	8–12 ft	Good for small spaces or containers

Most home gardeners should choose semi-dwarf for a balance of size and productivity.

3. Top Varieties

Top European Pear Varieties

Variety	Flavor Profile	Ripening Time	Notable Traits
Bartlett (Williams)	Sweet, classic pear flavor	Late summer	High-yielding, popular for fresh eating & canning
Bosc	Sweet-spicy, dense texture	Fall	Great for baking and storage
Anjou (D’Anjou)	Mild, sweet	Late fall	Stores well, resists bruising
Comice	Very sweet, soft texture	Late fall	Excellent for fresh eating, gourmet variety
Seckel	Very sweet (sugar pear)	Late summer	Small fruit, great for kids or canning
Magness	Juicy, rich flavor	Mid fall	Fire blight resistant, but sterile (needs pollinator)
Warren	Sweet, buttery	Late fall	Very resistant to fire blight; great flavor

Top Asian Pear Varieties

Variety	Flavor Profile	Ripening Time	Notable Traits
20th Century (Nijisseiki)	Mild, sweet, crisp	Late summer	Very productive and popular
Shinseiki	Crisp, juicy, mildly sweet	Early-mid summer	Low chill, good for warm climates
Hosui	Sweet, spicy, very juicy	Mid-late summer	Beautiful bronze skin, excellent fresh
Yoinashi	Very sweet and aromatic	Late summer	High sugar content, crisp
Chojuro	Rich, butterscotch-like flavor	Mid-summer	Good storage life, firm texture
Kikusui	Very juicy, floral sweet	Mid-summer	Cold-hardy, attractive yellow skin

3. Pollination Needs

Most pear trees need a pollinator, meaning you should plant at least two compatible varieties nearby.

Pear Tree Pollination Compatibility Chart

Pear Variety	Bartlett	Bosc	Anjou	Comice	Seckel	Magness	Warren	20th Century	Hosui	Shinseiki
Bartlett	❌	✅	✅	✅	✅	✅	✅	❌	❌	❌
Bosc	✅	❌	✅	✅	✅	✅	✅	❌	❌	❌
Anjou	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌
Comice	✅	✅	✅	❌	✅	✅	✅	❌	❌	❌
Seckel	✅	✅	✅	✅	❌	✅	✅	❌	❌	❌
Magness	✅	✅	✅	✅	✅	❌*	✅	❌	❌	❌
Warren	✅	✅	✅	✅	✅	✅	❌*	❌	❌	❌
20th Century	❌	❌	❌	❌	❌	❌	❌	❌	✅	✅
Hosui	❌	❌	❌	❌	❌	❌	❌	✅	❌	✅
Shinseiki	❌	❌	❌	❌	❌	❌	❌	✅	✅	❌

Notes:

✅ = Good pollinator pair (same bloom time, compatible pollen)

❌ = Incompatible or poor match

= Magness and Warren are sterile (cannot pollinate other varieties), so they require a third pollinator to ensure fruit set on other trees.

Quick Tips for Successful Pollination:

Plant two or more compatible varieties within 50–100 feet of each other.

Bloom time overlap is essential — early bloomers must match with other early bloomers, etc.

European pears don’t cross-pollinate with Asian pears (different species), with very rare exceptions.

4. How to Plant Pear Trees

Best Time:

Early spring (dormant season)

Fall in Zones 7–9, where winters are mild

Location:

Full sun (6+ hours/day)

Well-drained loamy soil

Avoid frost pockets or soggy areas

Spacing:

Standard: 20–25 ft

Semi-dwarf: 12–18 ft

Dwarf: 8–10 ft

Planting Steps:

Dig a hole twice as wide as the root ball.

Set tree so the graft union sits 2–4 inches above the soil.

Backfill with native soil; water deeply.

Mulch around the base (keep away from trunk).

5. Watering & Feeding

Stage	Watering	Fertilizer
Newly planted	2–3x per week (deep soak)	Wait 4–6 weeks, then apply compost
Year 1–2	1x/week (deeper during dry spells)	Early spring: 10-10-10 or compost tea
Mature trees	As needed in dry periods	Yearly in early spring

How Much to Fertilize Pear Trees

General Guidelines (per year)

Tree Age	Nitrogen Fertilizer (N)	Example Products
1 year	¼ cup of 10-10-10	All-purpose balanced fertilizer
2 years	½ cup of 10-10-10	“Fruit Tree” fertilizer mix
3+ years	1–2 cups of 10-10-10 or ½–1 lb of 21-0-0 (ammonium sulfate)	Based on soil and tree vigor
Mature bearing trees	0.1–0.2 lb of actual nitrogen per year per inch of trunk diameter (measured 1 ft above soil)	Use soil test to guide exact amount

How to Calculate “Actual Nitrogen”

If you use a fertilizer like 10-10-10, only 10% is nitrogen.

Example:

You want 0.2 lb of actual nitrogen.

0.2 ÷ 0.10 = 2 lbs of 10-10-10 needed.

When to Fertilize

Timing	Why It Matters
Early spring (before bud break)	Best time to apply nitrogen for healthy growth
Avoid summer or late-season nitrogen	Can encourage tender growth prone to fire blight and winter damage

6. Pruning Pear Trees

When to Prune:

Late winter while dormant (Jan–Mar, depending on zone)

How to Prune:

Use central leader shape (like a Christmas tree)

Remove:

Dead/diseased wood

Branches crossing or growing inward

Watersprouts and suckers

Thin crowded areas to allow light and airflow

Prune lightly—pears are prone to over-pruning stress and fire blight.

7. Pests & Disease Control

Problem	Signs	Control
Fire Blight	Blackened, curled tips (“shepherd’s crook”)	Prune infected branches 8–12″ below, copper spray
Pear Psylla	Sticky leaves, tiny brown bugs	Neem oil, insecticidal soap
Codling Moth	Worms in fruit	Use traps, bag fruit, Bt spray
Aphids	Leaf curling, sticky residue	Neem oil, ladybugs, soap spray
Deer/Rabbits	Chewed bark or buds	Fencing, trunk guards

Pear Tree Spray Schedule

Growth Stage	Timing	Target Issues	Recommended Sprays
Dormant	Late winter before bud swell (Feb–Mar)	Overwintering pests, fungal spores	– Dormant oil spray (smothers insect eggs)- Copper fungicide (controls fire blight, scab, rust)
Green Tip	Buds just starting to show green	Pear psylla, fire blight, scab	– Horticultural oil– Copper or sulfur fungicide
Pre-Bloom (Pink Bud)	Just before flowers open	Pear psylla, aphids, scab	– Spinosad (organic insecticide)- Sulfur (fungus control)- Avoid copper now—it can damage blooms
Bloom	Full bloom (do NOT spray insecticides now)	Fire blight (esp. in wet/humid weather)	– Streptomycin (if high fire blight risk; use with care)- Serenade (organic biofungicide)
Petal Fall	When 75–90% of petals have fallen	Codling moth, psylla, scab	– Spinosad or Carbaryl (codling moth)- Sulfur (fungicide)
Fruit Set / Early Fruit	~2 weeks after petal fall	Codling moth, scab, rust, mites	– Neem oil or Kaolin clay (organic insect/pest deterrent)- Sulfur or copper (if disease pressure is high)
Summer (Every 10–14 days)	Until harvest	Codling moth, rust, mites, fungal diseases	– Rotate insecticides (Spinosad, Neem, etc.)- Use light sulfur spray if needed
Post-Harvest (Late Summer/Fall)	After fruit is harvested	Overwintering pests & disease spores	– Copper spray– Dormant oil (late fall or in winter again)

Organic vs Conventional Options

Purpose	Organic Options	Conventional Options
Insects	Neem oil, Spinosad, Kaolin clay	Malathion, Carbaryl
Fungi	Copper, Sulfur, Serenade	Captan, Myclobutanil
Fire Blight	Serenade, Copper (early)	Streptomycin (only if necessary)

8. Harvesting Pears

Type	How to Harvest	Ripening
European Pears	Pick when mature but still firm (not soft); ripen off-tree	Store at room temp until soft
Asian Pears	Pick when fully ripe and sweet on tree	No off-tree ripening needed

✅ Test for maturity:

Easy twist from branch

Full size and light color change

Seeds inside turn brown

9. Storage Tips

European pears: Store unripe in a cool spot (35–45°F); ripen at room temp

Asian pears: Store in fridge up to 2–3 months

Bonus Tips for Success

Use companion plants like clover or nasturtium to attract pollinators

Mulch yearly to suppress weeds and retain moisture

Bagging fruit can reduce pest damage without sprays

Pick fire blight-resistant varieties (e.g., Moonglow, Harrow Delight) in humid regions