Asparagus can be eaten fresh or cooked in a variety of ways. Grilling the veggie is the simplest of the three options. Grilling asparagus spears takes 8 to 14 minutes, depending on thickness.

When the grill does its work, the outside of these bright green stalks becomes lightly charred and crisp, and the interior soft and supple; the best-grilled asparagus turns smokey and pleasantly caramelized.

Asparagus on the grill

Yes! Grilling asparagus is a great idea. The only thing you must be careful of is the asparagus stalks falling through the grates. Use a grill basket or make sure your asparagus is grilled perpendicular to the grates.

Grilling the asparagus in foil

To keep the asparagus from falling through the grill grates, place a sheet of aluminum foil on top and roast it directly on the foil. Wrap your asparagus in foil to make a foil packet if you want a steamed effect.

Grilling crispy asparagus

Grill asparagus over high heat, directly over grill grates, to make it crispy on the exterior and soft on the inside. The asparagus will crisp up on the outside when cooked over direct heat.

Grilling duration

Stalk diameterGrilling duration
Thick stalks (1 inch)6 to 10 minutes
Thin Stalks (approximately 1 cm)4 to 6 minutes
green asparagus vegetables on pink surface

Grilled asparagus has a distinctive flavor that complements any Sunday meal. The key to a successful grilled side dish is to cook the veggie for the correct time. If you use any more, the spear will burn; if you use any less, the green stems will not have the correct texture or flavor.

If the asparagus is thicker, it will take around 6 to 10 minutes to cook directly on the grill or until a fork can easily pierce the asparagus. Halfway through the cooking period, it must be turned. For an al dente cook, grill the asparagus for 3 minutes on each side. Then, for 10 minutes, a well-done asparagus stem cooks on the grill.

To avoid the pieces falling through the grill, slender roast asparagus on a veggie grill plate or aluminum foil. The grilling time for all sides is 4 to 6 minutes.

Why does grilling asparagus take so long?

Grilling time for asparagus is determined by thickness, size, and preference. Asparagus spears can range in thickness from 1 cm to 1 inch. The most popular type is thin asparagus, which can be found in most grocery stores.

Because heat must reach a bigger diameter, thick asparagus takes longer to cook. Additionally, cooking asparagus sliced into smaller pieces will take less time. When determining the cooking time, the preference for asparagus is crucial—Grill the asparagus for 10 minutes for a tender and delicate texture. However, if a crisp bite is desired, cook it for 6 minutes.

Because the fibers are densely packed, thinner stalks are more solid than thicker stalks when cooked. As a result, individuals prefer thicker asparagus stems. The texture of asparagus is determined by how it is cooked.

 The asparagus must be washed, and the woody ends snapped off by bending the spears. The stem breaks at a natural point. Then, about halfway up the stalk, peel the outer covering, resulting in a quicker cooking time and a tender product when cooked.

Asparagus preparation

Choose spears with tightly closed tips because if they’re loose or flowery, they’re probably old and tough. Fat spears are no more likely than skinny spears to be tough. Snap the bottoms off the asparagus stalks and lightly cover them with olive oil before grilling.

How to cook asparagus on the grill

fresh salmon with asparagus in foil paper, ready for cooking in oven

Brush the grill grates clean and preheat the grill to medium heat (approximately 350° and 400°F). Place the asparagus perpendicular to the grill grates to prevent them from falling—no need to use a foil.  Close the lid and grill the spears until they are soft and crisp.

When the asparagus is placed on the rack, it is ready to cook. Roll the spears with tongs for even grill marks. The spears are easier to maneuver with tongs than with a flipper or fork.

The entire rack can then be placed on your grill. With a rack specifically constructed for grilling asparagus, it’s a lot easier.

There are two more simple choices if you don’t have one of these racks:

Use a foil

Cut a piece of foil nearly twice as long as it is wide. Toss the asparagus with the oil and any spices you want to use, then lay it out in a single layer on the foil. Crimp the edges of the foil and fold it over the top. Place the packet on the grill to the side, not directly over the heat source, and cook for 5 minutes. You can even flip the packet halfway through grilling.

Use bamboo skewers

To make an asparagus picket fence, soak two bamboo skewers in water and thread them through the asparagus spears. This, like the foil, allows you to grill the asparagus stalks in one piece.

Last words

Asparagus is used in various cuisines, including salads, omelets, spaghetti, and as a side dish. This vegetable has a high folic acid content and is one of the most nutritionally balanced vegetables. A 150-gram serving of folic acid provides 60% of the RDA. Asparagus is also high in fiber, potassium, thiamin, vitamin C, vitamin B6, and vitamin A.

When cooking these vegetables, it’s important to keep track of the time. Grill the asparagus stalks for 6 to 10 minutes if they are thick and 4 to 6 minutes if they are thin. The time to cook varies depending on your desired texture. 

A texture that is al dente takes less time to prepare than one that is soft and sensitive. In addition, the asparagus stalk must be prepared well ahead of time to shorten grilling time and yield a more tender stem.