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Representative photo of large red apples with dew on the tree, not Redstar itself

Redstar Apple (Spring 2027)

$39.99
Rootstock/Size

Reliable shipping

Flexible returns

Pollination Needs a partner
Bloom group 4 of 7 (Mid)
Ripening

Will it finish before your first hard freeze?

Check it on the Ripening Map (opens in a new tab)
Disease resistanceNot tested yet
  • Apple scab : Unknown, no published data yet
  • Cedar-apple rust : Unknown, no published data yet
  • Fire blight : Unknown, no published data yet
  • Powdery mildew : Unknown, no published data yet

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

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

At a glance: Redstar Apple is an apple tree rated hardy to zone 2b from a Fairbanks grower's reports (winters to -45°F), and not self-fertile, so it needs a different variety nearby as a pollenizer (bloom group 4 of 7, mid for an apple or crabapple).

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 1,000 hours (800 to 1,200). 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 Needs Cross-Pollination. Bloom group 4 of 7 (mid), late spring here. Not self-fertile. Plant a different apple or crabapple variety nearby that blooms at about the same time (bloom groups 3 to 5 on our chart). Good partners we carry: Otterson Crabapple, Trail Crabapple, Alexander Apple, Burgundy Apple and 103 more. Bloom group is our estimate from the variety's origin and relatives. Apple Pollination Map.
Rootstock and size Dolgo: full size, about 20 to 30 ft tall unpruned. Very hardy and well anchored. Plant 18 to 20 ft apart. Our rootstock guide.
Good for Fresh eating (7/10). Scores are our 1 to 10 ratings, but we're still new to this one, so they lean on published descriptions and other growers rather than our own harvests. 8 and up makes our Best Of lists.
Deer A deer favorite. Fence it or cage it.
What you get Bare root, 2-4 ft or 4-6 ft. Shipped or picked up in Missoula in spring, roots wrapped in moist sawdust. Guaranteed to bud out.

This is our first year growing Redstar, so everything below is secondhand until we get more long-term data from our own mother trees.

Overview

Redstar is a big, sweet, crisp red eating apple that has proven itself in Fairbanks, Alaska. Steve Masterman at Alaska Fruit Trees calls it "a real joy to eat."

Origin and History

Nobody knows exactly where Redstar came from. It was named by Clair Lammers of Fairbanks, and Steve points out that it may well be a known variety under another name somewhere else. In Fairbanks, it's Redstar.

Fruit and Uses

According to Alaska Fruit Trees, the fruit is large (up to 3½ inches), red, juicy, sweet and crisp, "an excellent eating apple." It ripens in late August in their Fairbanks orchard. We don't know yet when it'll ripen here, and we don't have storage notes.

Growth Habit and Spacing

Ours are grafted on Dolgo full size rootstock, so give it room. Plan on 18 to 20 feet between trees, or tighter if you're committed to pruning every year. Be patient with it. Steve's tree was seven years old before it set fruit. Once it gets going, he says it's a steady annual bearer that sets heavily and needs thinning.

Pollination

Redstar needs a pollenizer. We're estimating it blooms mid-season, so pair it with something hardy in that window, like Haralson, Kerr, Trailman, Goodland, Frostbite or Otterson crab.

Cold Hardiness

Steve reports no tip dieback down to -40F. It did take significant dieback in one particularly harsh spring (2013) that killed a quarter of the trees in his orchard, but it came back and is fruiting again. He lists it with his zone 3 or colder apples and figures it's probably a bit hardier than that, since his orchard sits right on the zone 2/3 line. The documented number is -40F without injury. We'll update this once we have our own winter data.

About the photo: this isn’t Redstar itself. Photos of Redstar are either under copyright or simply unavailable, so we picked the open-source image that looks closest to the fruit. Photo: “Fresh ripe apples on a tree (54015357813)” by AS Photography from Poland, via Wikimedia Commons, licensed CC BY 4.0.

Questions we get about Redstar Apple

Does Redstar Apple need a pollenizer?

Yes. Redstar Apple needs pollen from a different variety that blooms at about the same time. Plant a different apple or crabapple variety nearby that blooms at about the same time (bloom groups 3 to 5 on our chart). Partners we carry include Otterson Crabapple, Trail Crabapple, Alexander Apple.

How cold hardy is Redstar Apple?

We list Redstar Apple at zone 2b, which means winters down to about -45°F. That comes from Steve Masterman in Fairbanks, who's seen no tip dieback down to -40°F and figures it's a bit hardier than zone 3. We haven't wintered our own trees yet, so we'll update it once we have.

How many chill hours does Redstar Apple need?

About 1,000 hours of winter chill (we count hours at or below 45°F), likely somewhere between 800 and 1,200. Nobody has published a chill figure for it, so that's our estimate from its relatives and origin. Our chill hours guide has a calculator for your winters, and our research page lists the sources.

How big does Redstar Apple get?

We graft Redstar Apple onto Dolgo (full size), which makes a tree roughly 20 to 30 ft tall if you never prune it. Plant 18 to 20 ft apart.

What is Redstar Apple good for?

Our top use scores for Redstar Apple are fresh eating (7/10). Since we're still new to it, that score leans on Alaska Fruit Trees' description rather than our own harvests.

Is Redstar Apple disease resistant?

We don't know yet. Nobody has published solid disease data on Redstar Apple for apple scab, cedar-apple rust, fire blight and powdery mildew, 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 apple disease resistance chart has every rating, the notes and the sources.

Will deer eat Redstar Apple?

Yes, deer love it. Protect Redstar Apple with a fence or a cage, especially while it is young.

What arrives, and when does Redstar Apple 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: 2-4 ft or 4-6 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

Trees that will pollenize Redstar Apple

Redstar Apple needs a different apple or crabapple nearby to set fruit. Every tree below blooms at the same time and has pollen that works for it. Plant partners within about 100 feet.

Bloom group 4 of 7 (Mid)
Pollination Needs a partner
Pollen Not tested yet

107 trees we carry will pollenize it. Showing the best matches, in-stock first.

See every pairing on the Apple Pollination Map Redstar Apple's bloom group is our best estimate. Watch it bloom and tell us what you see.

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