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A handful of ripe Morden 604 apricots

Morden 604 Apricot (Spring 2027)

$59.99
Rootstock/Size

Reliable shipping

Flexible returns

Pollination Self-fertile
Bloom group 2 of 7 (Early)
Ripening

Will it finish before your first hard freeze?

Check it on the Ripening Map (opens in a new tab)
Disease resistanceNot tested yet
  • Bacterial canker : Unknown, no published data yet
  • Bacterial spot : Unknown, no published data yet
  • Brown rot : Unknown, no published data yet
  • Cytospora canker : Unknown, no published data yet
  • Shot hole : Unknown, no published data yet

Scored 1 to 5. Higher resists better, and ? means no published data yet.

See it on our apricot disease chart (opens in a new tab)

At a glance: Morden 604 Apricot is an apricot tree rated hardy to zone 2b in our ratings (winters to -45°F), and self-fertile, so one tree can crop (bloom group 2 of 7, early for an apricot).

Hardy to Zone 2b to 7. The b means the warmer half of zone 2 only (winters to -45°F). Find your zone with our cold hardiness calculator.
Chill hours About 600 hours (400 to 800). Our estimate. No published figure exists for this variety yet. Montana winters give it plenty. In milder climates, make sure your winters average at least this much. Check your chill hours or see our sources.
Pollination Self-Fertile. Bloom group 2 of 7 (early), very early spring here. Self-fertile, so one tree can crop alone. Another early apricot such as Westcot nearby usually improves yields. Nearby varieties that can boost the crop: Westcot Apricot, Montana Mango Apricot, Debbie's Gold Apricot, Manchurian Apricot (Bundle of 2) and 6 more. Apricot Pollination Map.
Rootstock and size Manchurian: full size, about 15 to 20 ft tall unpruned. The hardiest apricot root there is. Our rootstock guide.
Good for Fresh eating (8/10), jams and jellies (7/10), pies and baking (6/10), canning and freezing (6/10). Scores are our own 1 to 10 ratings; 8 and up makes our Best Of lists.
Deer Sometimes damaged by deer.
Compare it Westcot vs Debbie's Gold vs Morden 604, side by side on hardiness, pollination, ripening and fruit.
Where it came from Read about the Canadian prairie breeding stations and what else came out of it.
What you get Bare root, 3-5 ft or 4-6 ft or 6-8 ft or 7-9 ft. Shipped or picked up in Missoula in spring, roots wrapped in moist sawdust. Guaranteed to bud out.

Overview

Morden 604 is one of the earliest and most notable improved, ultra-hardy apricot varieties developed for the prairies. It was released in 1946 by the Agriculture Canada research facility in Morden, Manitoba, and represents a major milestone in cold-climate fruit breeding.

Breeding Background

Morden 604 is a cross between:

‘Scout’ – a seedling of Manchurian apricot

‘McClure’ – another hardy cultivar with proven resilience

We received our first harvest in Summer 2023 in Missoula, and the flavor did not disappoint.

Luke’s tasting notes:
“Creamy, and very sweet. It’s too bad we only got a few this first year. Looking forward to more.”

Fruit & Flavor Profile

Flavor: Creamy, sweet, and pleasant

Size: Large fruit, averaging 4.5 cm (1¾")

Color: Classic apricot tones

Exceptional Cold Hardiness

Morden 604 is one of the most cold-hardy apricots available, with buds capable of withstanding -40°F or colder. It rivals (and possibly exceeds) the hardiness of other known cold-climate champions:

Debbie’s Gold: -41°F

Brookcot: -48°F

Westcot: -48°F near Bemidji, MN

Sunrise: -50°F+

We comfortably list this as a Zone 2b apricot, although it can be feast or famine the colder you are in terms of reliably getting a crop due to the blossoms getting damaged from late Spring frosts.

Tree Size & Rootstock

Grafted onto: Full-size, cold-hardy Manchurian apricot rootstock

Mature height: Up to 25 feet if left unpruned

Sizes available: Varies by inventory (see size options when ordering)

Questions we get about Morden 604 Apricot

Does Morden 604 Apricot need a pollenizer?

No. Morden 604 Apricot is self-fertile, so a single tree can set fruit. Self-fertile, so one tree can crop alone. Another early apricot such as Westcot nearby usually improves yields. Partners we carry include Westcot Apricot, Montana Mango Apricot, Debbie's Gold Apricot.

How cold hardy is Morden 604 Apricot?

We rate Morden 604 Apricot hardy to zone 2b, which means winters down to about -45°F. Our ratings come from real winters at our two Montana sites and from trusted growers across the North, not from a catalog average.

How many chill hours does Morden 604 Apricot need?

About 600 hours of winter chill (we count hours at or below 45°F), likely somewhere between 400 and 800. Nobody has published a chill figure for it, so that's our estimate from its relatives and origin. Montana winters cover its chill easily. The real risk is early bloom, so a spot that warms slowly in spring helps dodge frost. Our chill hours guide has a calculator for your winters, and our research page lists the sources.

How big does Morden 604 Apricot get?

We graft Morden 604 Apricot onto Manchurian (full size), which makes a tree roughly 15 to 20 ft tall if you never prune it.

What is Morden 604 Apricot good for?

Our top use scores for Morden 604 Apricot are fresh eating (8/10), jams and jellies (7/10), pies and baking (6/10), canning and freezing (6/10). Anything scored 8 or higher makes our Best Of lists.

Is Morden 604 Apricot disease resistant?

We don't know yet. Nobody has published solid disease data on Morden 604 Apricot for bacterial canker, bacterial spot, brown rot, cytospora canker and shot hole, so we list it as unknown instead of guessing. That doesn't mean it's weak. Plenty of the plants we grow have never been through formal disease trials. Our apricot disease resistance chart has every rating, the notes and the sources.

Will deer eat Morden 604 Apricot?

Sometimes. Deer browse Morden 604 Apricot now and then, so protect young plants where deer pressure is high.

What arrives, and when does Morden 604 Apricot ship?

A dormant bare-root plant, roots wrapped in moist sawdust with a vapor barrier, shipped or picked up in Missoula in spring. Sizes offered: 3-5 ft or 4-6 ft or 6-8 ft or 7-9 ft. We guarantee our plants bud out. Stone fruits can be slow, so if one still has not budded out by August 15, write to us and we credit you for the following spring.

Pollination partners

Good partners for Morden 604 Apricot

Morden 604 Apricot is self-fertile, so one tree will fruit on its own. If you'd like a second apricot, these bloom at the same time and work well together.

Bloom group 2 of 7 (Early)
Pollination Self-fertile
Pollen Good pollenizer

10 trees we carry bloom with it. 5 in stock now.

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