Gadenin日本語Get the appThe slip is the sign that matters
A melon tells you when it is ready in a way almost no other fruit in the garden does. As the fruit finishes, a corky ring forms where the stem meets the fruit, the tissue there separates, and the melon parts from the vine under its own weight or with the lightest pressure from a thumb. That separation is called the slip, and it is the single most useful thing to know about harvesting a melon. Nothing else you can measure comes close to it for accuracy.
Test it without force. Put one hand under the fruit, put your thumb against the stem just above the shoulder, and push gently sideways. A ripe melon lets go cleanly and leaves a smooth, slightly dished scar with no torn skin. If it resists at all, stop, leave it, and come back in two days. A fruit that has to be cut off is a fruit that was not ready, and it will taste flat however long you leave it on the counter.
| Stage | What the stem looks like | What happens when you push | What to do |
|---|---|---|---|
| Full slip | A clean crack all the way round the stem | Falls into your hand | Pick it today, it will not improve |
| Half slip | A crack over part of the circumference | Parts with light pressure | Pick for eating in two or three days |
| Quarter slip | First hairline crack on one side | Firm, moves slightly | Best for carrying any distance |
| No slip | Stem joins the fruit with no crack | Solid, no movement | Leave it and check in two days |
| Overslipped | Fruit already off the vine on the ground | Already separated | Eat it straight away, it will not keep |
Honeydew types and other winter melons do not slip at all. For those, use the smell, the skin feel and the day count described below, and cut the stem with pruners rather than waiting for a separation that never comes.
Smell the stem end, not the fruit
The second sign is the aroma, and where you put your nose decides whether it works. Sniff the blossom end, the round scar at the opposite end from the stem, and on a ripe muskmelon you will get a clear, sweet, unmistakable melon perfume from a couple of inches away. The sides of the fruit smell of very little even when the flesh inside is perfect, so a gardener who sniffs the middle concludes the fruit is not ready and leaves it another week.
Do it in the morning while the fruit is still cool. Aroma compounds are volatile, and a melon sitting in afternoon sun has already thrown off much of what you are trying to smell; by evening the same fruit can seem almost scentless. A faint smell with no slip means a few more days. A strong, almost fermented smell with a soft blossom end means you left it too long, and the flesh will be watery and slightly alcoholic at the center.
- Check the blossom end first Press the round scar at the far end from the stem with a thumb. On a ripe fruit it gives very slightly, like the flesh at the base of your thumb. Rock hard means wait, and clearly soft means overripe.
- Sniff before the day heats Do the smell test in the first hours of daylight while the fruit is cool. The same fruit gives a much weaker reading in the afternoon and you will misjudge it.
- Look at the netting On a netted muskmelon the background skin turns from green to a warm buff or gold and the raised netting stands out corky and rough. A green background with flat netting is not ready whatever the stem is doing.
- Ignore the tapping The hollow-sound test that works on watermelon tells you very little on a melon. Spend the time on the stem and the smell instead.
Counting days from pollination
The day count is what tells you when to start looking. Write the date on a plant label pushed into the soil beside each fruit the morning the female flower opens, and from then on you are checking a prediction rather than guessing. Without that date you will walk past a fruit that slipped overnight and find it three days later, split and full of ants.
Weather moves the count. A run of hot, bright days shortens it by several days, and a cool cloudy fortnight in the middle of fruit fill can add a week or more. Treat the ranges below as the day to start checking rather than the day to pick, and once one fruit on a plant has slipped, expect the rest on that plant within a week.
| Melon type | Days from pollination | Start checking at | Ripe signal to rely on |
|---|---|---|---|
| Netted muskmelon | 35 to 45 days | Day 32 | Full or half slip plus aroma |
| Smooth-skinned honeydew | 45 to 55 days | Day 42 | Skin turns waxy, blossom end softens |
| Small personal-size types | 30 to 38 days | Day 28 | Slip, and skin color change |
| Long-keeping winter types | 55 to 70 days | Day 50 | Skin color and stem shrivel, no slip |
Cool, dull summers add five to ten days to every figure here. If a fruit reaches the top of its range with no sign of ripening and the nights have been cold, keep waiting rather than cutting it.
Picking, and how long it keeps
Pick in the morning, before the fruit warms through. Carry melons in a basket rather than by the stem: the stalk of a slipping fruit is already half detached and it will tear the shoulder if you lift by it. A melon dropped even a short distance bruises internally with nothing visible on the skin, and the bruise turns to a soft brown patch within two days.
A muskmelon picked at full slip is at its peak that day and holds about five days in a cool room or a week in a refrigerator. It will soften on the counter but it does not get any sweeter, because a melon has almost no starch reserve to convert once it leaves the vine. Honeydew and other winter types are the exception: they genuinely improve for a week or two after cutting, so pick those a little early and let them finish indoors.
- Pick every morning once one has slipped The window between full slip and split is short in warm weather. Once the first fruit on a plant goes, walk the bed daily rather than every few days.
- Leave the stem on winter types For honeydew and long-keeping melons, cut with an inch (2 cm) of stem attached. The stem scar is where rot enters and an intact stem buys weeks of storage.
- Cool it before you chill it Put a picked melon somewhere shaded and airy for a few hours before it goes into a refrigerator. Field heat trapped in a cold fruit makes the flesh go soft and dull.
- Do not stack them Melons resting on each other bruise at the contact points. Set them in a single layer with the stem scar upwards.
What to write down this season
The harvest is where a melon season pays back record keeping most obviously, because the numbers are specific to your garden and no general figure replaces them. For every fruit, note the pollination date, the date it slipped, and, after you have eaten it, whether the flesh was underripe, right, or watery and over. Three fruit with those three notes is enough to give you a real day count for your own conditions.
Add the position too. Melons on the sunniest end of a bed routinely ripen four or five days ahead of those at the shaded end, and if you know that, you check that end first next year instead of finding split fruit. Note the weather in the fortnight before harvest as well, in one line, because a cool spell explains a long count and stops you concluding the plants were at fault.
- Record slip date against pollination date The gap between those two numbers, averaged over a few fruit, is your garden's real day count. It will differ from any published range by up to a week in either direction.
- Record how it actually tasted Underripe, right, or watery. A fruit you picked too early is more informative than one you got right, because it sets the floor for next season.
- Note which end of the bed ripened first Sun, drainage and shelter make a several-day difference across a short row. Knowing which end runs ahead saves fruit.
- Keep a note of the fortnight's weather One line is enough: hot and dry, or cool and wet. It explains a long or short count when you look back at the figures a year later.