Choosing the right asparagus variety is an important first step when establishing a long-term asparagus bed. Because asparagus is a perennial vegetable that can remain productive for 15 years or longer, the variety you plant today can influence your spring harvests for many years to come.

Not all asparagus varieties are the same. Some varieties are known for cold tolerance, some perform especially well in warmer conditions, some offer high yield potential, and others produce unique purple spears with a sweeter flavor.

In this guide, we're comparing six asparagus varieties: Jersey Knight, Atlas F1, Millennium, Mary Washington, Purple Passion, and Walker Deluxe F1. Use the comparison below to find the variety that best fits your climate, garden, and harvest goals.

Asparagus Variety Comparison Chart

Start with this quick comparison to see what makes each asparagus variety different.

Jersey Knight Asparagus

Jersey Knight is a popular hybrid asparagus variety known for vigorous growth, dependable yields, and high-quality green spears. It produces medium-to-large green spears that may show slightly purple bracts, particularly under cooler growing conditions.

Jersey Knight is predominantly male, which can be an advantage for gardeners focused on spear production. Male asparagus plants do not use energy to produce berries and seeds.

Jersey Knight is also known for tolerance or resistance to several important asparagus diseases, including rust, Fusarium wilt, and crown and root rot.

Atlas F1 Asparagus

Atlas F1 is an early, vigorous hybrid known for high yields and medium-to-large green spears with slight purple coloration around the tips and bracts.

One of Atlas F1's standout characteristics is its performance in warmer conditions. The spears maintain tight heads as temperatures rise, making Atlas particularly useful in temperate-to-warm growing regions.

Atlas F1 is also known for tolerance to several important asparagus diseases, including Fusarium, rust, blight, and Cercospora foliar diseases.

Millennium Asparagus

Millennium, also known as Guelph Millennium, is an all-male asparagus hybrid developed in Canada. It has become a popular choice for gardeners in colder growing regions because of its excellent cold tolerance, vigor, and productivity.

Millennium produces attractive green spears with purple-tinted tips and is known for heavy yields. It is also adaptable to a range of soil types. As with every asparagus variety, good drainage remains important for maintaining a healthy perennial bed.

Because Millennium is an all-male variety, plants can direct their energy toward vegetative growth and spear production rather than producing berries and seeds.

Mary Washington Asparagus

Mary Washington is a classic open-pollinated asparagus variety that has been grown in home gardens for generations. It produces traditional green spears, often with purple coloration around the tightly folded tips.

Unlike all-male hybrids, Mary Washington plantings can contain both male and female plants. Female plants produce red berries containing seeds, which may eventually result in volunteer asparagus seedlings appearing around the bed.

Mary Washington generally does not match modern male hybrids for maximum yield, but its cold hardiness, long history, and open-pollinated nature continue to make it appealing to home gardeners.

Purple Passion Asparagus

Purple Passion stands apart from traditional green asparagus thanks to its large, burgundy-purple spears and sweeter flavor.

The distinctive purple color comes from natural pigments called anthocyanins. Purple Passion is known for thick, tender spears that offer a sweeter flavor than many traditional green asparagus varieties.

The purple color is most noticeable when the asparagus is fresh or only lightly prepared. When thoroughly cooked, purple asparagus generally turns green.

Purple Passion is an open-pollinated variety and can produce both male and female plants. Its large spears, sweeter flavor, and unusual color make it an especially interesting option for gardeners who want something different from traditional green asparagus.

Walker Deluxe F1 Asparagus

Walker Deluxe F1 is an early-season, high-yielding asparagus hybrid bred for productivity and broad climate adaptability. It is approximately 98% male and produces medium green spears with slightly purple bracts and tight heads.

One of Walker Deluxe's biggest strengths is its versatility. Unlike varieties particularly associated with either warmer or colder growing regions, Walker Deluxe is adapted to cool, temperate, and warm climates.

It also offers high tolerance to rust, Fusarium, and other foliar diseases. Combined with its early-season performance and very high yield potential, these characteristics make Walker Deluxe an interesting option for gardeners looking for a modern, productive asparagus hybrid.

Which Asparagus Variety Should You Choose?

There is no single best asparagus variety for every garden. Climate, growing conditions, flavor preferences, and your goals for the asparagus bed can all influence which variety is right for you.

If you're looking for a dependable hybrid with strong disease tolerance, Jersey Knight is an excellent all-around option. Gardeners in warmer regions may be particularly interested in Atlas F1, while those dealing with colder winters may prefer the cold tolerance of Millennium.

For gardeners interested in traditional open-pollinated asparagus, Mary Washington offers a very different option from modern male hybrids. If flavor and appearance are priorities, Purple Passion produces thick purple spears with a sweeter flavor.

Walker Deluxe F1 stands out for gardeners looking for a modern hybrid that combines early production, high yield potential, disease tolerance, and adaptability across a broad range of climates.

Male vs. Female Asparagus Plants

Understanding the difference between male and female asparagus plants can make some of the terminology used in variety descriptions easier to understand.

Both male and female asparagus plants produce edible spears. Female plants, however, also produce berries and seeds. Producing fruit requires energy, and dropped seeds can create volunteer asparagus seedlings within an established bed.

For this reason, many modern asparagus breeding programs have focused on predominantly male or all-male varieties. These varieties can devote more energy to vegetative growth and spear production and avoid most of the seedling growth associated with female plants.

Does Asparagus Need Well-Draining Soil?

Regardless of the variety you choose, good drainage is extremely important when growing asparagus.

Asparagus is a long-lived perennial crop, so selecting and preparing the planting location correctly can affect plant health and production for many years.

Choose a planting location with:

• Full sun
• Well-draining soil
• Good soil preparation before planting
• Adequate space for long-term growth
• Reliable access to water during establishment

Some varieties may adapt to a wider range of soil types than others, but asparagus should not be planted in consistently waterlogged soil.

Can You Grow More Than One Asparagus Variety Together?

Yes. Different asparagus varieties can be planted in the same garden or asparagus bed.

Growing several varieties can be especially interesting for home gardeners because each cultivar may offer something different. You could combine a productive green hybrid with Purple Passion for color or compare the harvest timing and spear characteristics of several green varieties.

When planting multiple varieties, consider labeling each section of the bed so you can compare their performance over the years.