Vegetables

Cucumber Harvest | Know When to Pick Cucumbers

Cucumber Harvest | Know When to Pick Cucumbers
Jeremy Starke — Green Thumb Gardener

About the Author: Jeremy Starke

I've been growing vegetables since I was 12 — over 30 years in the dirt. I share what actually works in my own Zone 6b garden, and what I wish someone had told me when I started.

Zone 6b · North Carolina · Gardening since age 12

One day my parents said they would visit us at lunchtime. Tim and I were excited and we started planning. They just love crunchy cucumbers and there was Tim’s garden so that was fine. 

About lunchtime, we heard the car. I had a last look at the table and, Oh no, The cucumbers were not on the table! With scissors in hand, I ran out, clipped four firm-ripe cucumbers, sliced them, and dashed to the table. Phew! That was exactly when to pick cucumbers, I told myself.

When To Pick Your Cucumbers

Many ignore the seed packet and yet it’s the first clue that’ll help you ascertain the length of your cucumbers and when they’ll be ready to harvest after germinating.

The information will give you some idea of the growth path of your cucumbers.

when to harvest cucumbers

Female Flowers

This is the first give away sign that tells you the cucumbers are on their way. The plants produce two types of flowers, male and female and it’s the female flowers that carry your cucumbers.

You will notice a swelling immediately below the flower stem. This swelling signifies the beginning of your cucumber.

Length and Size are Important

From here on you will keep noticing a continual change in the length and size of your cucumbers until they reach maturity and are ready to harvest in the next 8-10 days after the female flowers bloom. 

The ideal length of your cucumbers should be between 6-8 inches long but always keep in mind that from germination, your cucumbers can be harvested at or between 50-70 days depending on the variety grown.

Different Harvesting Stages

Cucumbers can be divided into 3 basic types, standard, dill and large cucumbers.

  1. Standard - The standard type cucumbers or slicing cucumbers are usually ready for picking at 6 to 8 inches long
  2. Dill - Dills can be picked when they are only 4 inches long and pickling cucumbers can be harvested when they’re only 2 inches long.
  3. Large - The large cucumbers are usually 10 inches when they are ready for picking with other varieties growing to longer lengths and are usually without pips as they are full of meaty flesh.

What to Look For When Picking Cucumbers

Now that you know what slicing cucumbers, dills and large cucumbers are and the right time for harvesting them, what else would you need to know before you get into your cucumber harvesting spree? Read on to find out.

Size

Size tells you that your cucumbers have reached their maturity for specific purposes. You already know for instance that dills are ready for picking when only 4 inches long, for pickling 2 inches and slicing 6-8 inches long and so on. 

However connoisseurs say cucumbers taste best when they are 5 – 8 inches long. We shouldn’t argue with that, after all it’s a matter of taste!

Color

The ideal color progression for cucumbers is dark green when from the “swelling” stage and they maintain that color throughout their growing life. Nevertheless, cultivars are known to develop a white or yellow color when they mature or ripen for picking. 

However, the safe color to stick to is dark green. Please note that if a dark green cucumber has turned yellow, it means it’s been on the tree too long and the taste will be bitter!

Firmness

Under a gentle squeeze, perfectly mature cucumbers will give in very slightly but still maintain their firm feel. 

This signals that the cucumber is begging to be picked and you should have no doubt but to do so and enjoy later. After examining a few more you will end up deciding they are all fit to be harvested.

Ripeness

The three characteristics mentioned above all indicate that your cucumbers are ideal for picking and you shouldn’t have any doubts whatsoever to begin harvesting the fruits of your hard work.

​How to Harvest Your Cucumbers

  • Wash the whole cucumbers under the tap. Do the same for cucumbers you’ve bought from the grocery shop.
  • Dry the cucumbers prior to storing them and then wrap them in a paper towel or dishcloth to absorb the rest of the moisture to make them ready for slicing. Those with soft or moldy spots should be consumed quickly after removing the moldy spot.
  • Peel the cucumber to make it easier to store using a vegetable peeler to remove the dark green skin and reveal the light green layer beneath. Removing the skin is necessary for the next slicing stage.
  • Cut the cucumbers into small slices of about ¼ inch long with a sharp knife

Cucumber Slices in the Fridge | 6 Tips For Freshness

​Tip #1: Moisten a paper towel

Dampen a paper towel under cool tap water making sure you squeeze it to expel excess water.

Cover the exposed (skinless) parts covered with a paper towel.

Diva Cucumbers

​Tip #2: Totally wrap cucumber in the paper towel

bush champion cucumber
straight eight cucumbers

Do this by placing the pieces of cucumber in the middle of the bag and fold the ends to entirely cover the cucumber slices.

There is a minimum amount of moisture present so the slices won’t turn mushy.

​Tip #3: Store wrapped cucumber slices in an open plastic bag

A resealable bag can also be used.

Leaving the bags open permits moisture to escape and not collect around the slices and turn them mushy.

​Tip #4: Place the bag in the veggie drawer or crisper

early frame cucumber
ashley cucumber

These are ideal places being the warmest part of the fridge.

You can also put them at the front of the middle shelf away from colder air collecting at the bottom and freezer compartment.

​Tip #5: Keep the slices clear of ethylene

Cucumber is sensitive to ethylene produced by fruits.

Store your cucumber slices opposite from fruits if possible or use containers to reduce ethylene intrusion.

Fruits such as tomatoes, pears, bananas, apples, peaches and melons all exude ethylene.

​Tip #6: 2 days Limit

dasher II cucumbers
SaladMore Bush F1 Cucumber

Plan to use the sliced cucumbers within 2 days tops.

However, if you use these tips, it’s most likely that your slices will remain good for a week.

Cucumber Slices in the Freezer | 6 Tips

​Tip #1: Use a cold-resistant bowel for placing cucumber slices

Place slices in a single layer and spread out to make salting them easier.

​Tip #2: Salt the sliced cucumbers

orient express cucumber
muncher cucumber

Use a tablespoon (14.8 ml) of salt for 7 cups of cucumber slices but for less cups, use less salt.

Use salt or spoon for evenly spreading the salt. You can also use your hands to mix the salt with the slices.

​Tip #3: Put cucumbers in the fridge overnight

To add crisp to the slices, cover the mixing bowl with a towel and place some ice on the top.

​Tip #4: Drain the sliced cucumbers

chelsea prize cucumber
Persian Green Finger Cucumber

Remove the bowel from the fridge the day after and pour out the water.

Squeeze out excess water by hand or with a kitchen tool so that the slices remain crisp.

​Tip #5: Mix cucumber slices in sugar and vinegar solution

Add distilled white vinegar and white sugar in a bowl and mix them.

Let the cucumbers soak in the mixture for a few minutes until the sugar is dissolved.

Adjust the taste as you see fit. Sweeten the slices by adding sugar or produce a taste of sour pickles by adding more vinegar.

​Tip #6: Back to the freezer in freezer containers

marketmore 76 cucumber

Take the bowel out again and transfer its contents to the resealable frost-resistant containers with the sugar and vinegar mixture as well.

There’s only ¼ inch space up top but the sliced cucumbers will last a whole year, fresh and crisp.

Final Thoughts

Growing cucumbers and relishing them all year long through the four seasons with proper storage is a great accomplishment in itself. 

However, nothing can compare with the delight in planting your cucumber plants, watching them grow, and producing a bounty that signals when to pick cucumbers so you and your family can enjoy them. There’s no feeling like it anywhere, any time.  ​ 

when to harvest cucumbers
Jeremy Starke — Green Thumb Gardener

Meet Jeremy Starke

I've been growing vegetables since I was 12 — over 30 years in the dirt. I share what actually works in my own Zone 6b garden, and what I wish someone had told me when I started.

Zone 6b · North Carolina · Gardening since age 12 Read My Story →

Frequently Asked Questions

When should you pick cucumbers?

When they're firm, green, and the right size for the variety, usually before the seeds harden. Picking often keeps the plant producing.

How big should cucumbers be when you pick them?

Slicers around 6 to 8 inches, picklers 2 to 4 inches. Oversized cucumbers turn bitter and seedy, so don't wait too long.

What happens if you leave cucumbers on the vine too long?

They turn yellow, bitter, and seedy, and the plant slows new fruit production. Frequent harvesting keeps cucumbers coming and tasting good.