How And When To Pick Rhubarb

You pick rhubarb when the stalks are firm, bright, and at least 10 to 15 inches long, and the perfect time to do it is from mid-spring through early summer.
 
Knowing how and when to pick rhubarb is the secret to getting the most tender, tangy stalks for your pies, jams, and sauces.
 
When you pick rhubarb at the right moment, the plant rewards you with a generous harvest and stays healthy for years to come.
 
In this post, we’ll break down exactly how and when to pick rhubarb so you never pull too early or too late again.
 
Let’s dig into the timing and technique.
 

When to Pick Rhubarb for the Best Flavor and Yield

The best time to pick rhubarb is in spring and early summer, and you’ll know it’s ready when the stalks have reached full size.
 
You should always wait until the second year after planting before you first pick rhubarb, as the young plant needs that first season to establish a strong root system.
 
Once your rhubarb is established, you can pick rhubarb for about 8 to 10 weeks, usually from April through June, depending on your climate.
 
Early in the season, the stalks are at their most tender and sweet, which is why most gardeners rush to pick rhubarb as soon as it looks substantial.
 
You’ll want to stop picking by mid-summer so the plant can store energy for next year’s growth.
 

1. Look for the Right Stalk Length

A good rule for when to pick rhubarb is to check the stalk length, not just the leaf size.
 
You should pick rhubarb stalks that are at least 10 inches long, but anything between 12 and 18 inches is in the sweet spot.
 
When the stalks are shorter than 10 inches, they’re likely still too young and thin to give you much flesh.
 
Once they exceed 18 inches, they can become woody and stringy, so don’t wait too long to pick rhubarb that’s already giants.
 

2. Check the Thickness and Firmness

The ideal moment to pick rhubarb is when the stalks feel thick, firm, and crisp to the touch.
 
If a stalk bends easily or feels spongy, it’s past its prime and will be tough when you cook it.
 
Give the stalk a gentle squeeze, and if it’s solid with no give, that’s your cue to pick rhubarb now.
 
Also, check that the color is vibrant, whether it’s deep red, pink, or even green, depending on your variety, as dull coloring usually means over-maturity.
 

3. Assess the Leaves for Full Expansion

Even though the leaves are toxic and you’ll discard them, they tell you a lot about when to pick rhubarb.
 
When the leaves have fully unfurled and stopped growing, the stalk beneath is usually ready.
 
A rhubarb plant with leaves that are still tightly curled is too young, so wait another week and check again.
 
If the leaves are huge but floppy or yellowing, the plant is aging, and you should pick rhubarb before it declines further.
 

How to Pick Rhubarb Without Damaging the Plant

The technique you use to pick rhubarb matters just as much as the timing.
 
Never cut rhubarb stalks with a knife, as the leftover stub can rot and invite disease into the crown.
 
Instead, you should gently twist and pull each stalk from the base to ensure a clean removal.
 
Here’s the step-by-step method to pick rhubarb the right way every time.
 

1. Grasp the Stalk at Its Base

To pick rhubarb correctly, place your hand low on the stalk near the soil line.
 
Firmly hold it between your fingers and give it a slight sideways pull while twisting.
 
The stalk should snap off cleanly from the crown with a satisfying pop.
 
If you only pull halfway up the stalk, you risk tearing the crown and stressing the plant.
 

2. Remove Leaves Right Away

Once you pick rhubarb stalks, cut or twist off the leaves immediately.
 
Rhubarb leaves contain high levels of oxalic acid, which is toxic to humans and pets.
 
So never leave the leaves attached to the stalks you plan to eat.
 
Compost the leaves or toss them, but keep them far from your harvest basket.
 

3. Harvest Selectively, Not All at Once

When you go out to pick rhubarb, avoid clearing out the entire plant in one day.
 
Instead, take a few of the largest, most mature stalks from each plant, leaving the smaller ones to grow.
 
This staggered approach ensures a steady supply over several weeks.
 
A good goal is to leave at least half the stalks on the plant each time you pick rhubarb.
 

Signs That You’ve Waited Too Long to Pick Rhubarb

If you’re unsure when to pick rhubarb, look for signs that it’s becoming over-mature.
 
When rhubarb gets too old, the stalks turn woody, fibrous, and less juicy.
 
They also lose that bright, crisp snap and become dull in color.
 
Another major sign is the appearance of a flower stalk in the center of the plant.
 

1. The Plant Has Bolted

When your rhubarb sends up a tall, thick flower stalk, that’s called bolting.
 
Once a rhubarb plant bolts, its energy shifts from stalk production to seed production.
 
This makes the remaining stalks tougher and less flavorful.
 
If you see a flower stalk forming, cut it out immediately, but expect that the quality of future stalks will decline.
 

2. The Stalks Are Hollow or Stringy

A clear sign you’ve waited too long to pick rhubarb is hollowness in the stalk’s center.
 
Cut a stalk open and if it looks pithy or hollow, that rhubarb is past its eating prime.
 
Stringy texture is another red flag, as over-mature stalks have tough, fibrous threads running through them.
 
These won’t break down much during cooking, so they’ll ruin the smooth texture you want.
 

3. Leaves Begin to Wilt or Spot

Healthy leaves hold up well, but when they start wilting or showing brown spots, the plant is running out of steam.
 
This is a late-season signal that you should pick any remaining decent stalks now.
 
After this point, it’s best to leave the plant alone and let it rest until autumn.
 

Caring for Your Rhubarb After You Pick It

After you pick rhubarb, proper care keeps it fresh and delicious for longer.
 
The key is to store the stalks cold and moist without letting them dry out.
 
You can wrap the stalks in a damp paper towel and place them in a plastic bag in the fridge.
 
This method keeps rhubarb fresh for about one to two weeks.
 
If you have more rhubarb than you can use, chop it into chunks and freeze it in zip-top bags.
 
Frozen rhubarb keeps for up to a year and works perfectly for baking later.
 

So, How and When to Pick Rhubarb?

You pick rhubarb by twisting and pulling the mature stalks from the base of the plant, and you should do this from mid-spring to early summer.
 
The ideal window to pick rhubarb is when the stalks are at least 10 inches long, firm, and before the plant starts to bolt.
 
Remember never to cut the stalks with a knife, always remove the toxic leaves, and never harvest more than half the plant at once.
 
With this knowledge of how and when to pick rhubarb, you’ll enjoy a bountiful harvest of perfect stalks season after season.
 
Now get out there and check your patch, because those perfect stalks are waiting for you.