Question 1

What actually makes cut flowers last longer?

Accepted Answer

Three things kill cut flowers, and each has a straightforward countermeasure — most of the folk remedies address only one of them, which is why they help a little and no more.

**The three causes of decline:**

**Blocked stems.** A cut stem draws water up by the same tension that pulls it through a living plant. **Air bubbles** entering at the cut, and **bacteria** multiplying in the vase, both block the water-conducting vessels. Once blocked, the flower cannot rehydrate no matter how much water it stands in — which is why a wilting flower in a full vase is normal rather than paradoxical.

**Running out of energy.** Cut from the plant, the flower has only its stored sugars.

**Ethylene.** A plant hormone that triggers ageing and petal drop. Flowers produce it themselves, and **ripening fruit produces a great deal of it**.

**What actually works:**

**Recut the stems at an angle, and do it under water** or immediately before immersion. The angle prevents the cut sitting flat on the vase bottom; doing it wet prevents an air bubble entering. Recut every couple of days.

**Use a scrupulously clean vase.** Bacterial load is the main variable, and a vase that merely looks clean frequently is not. Wash and change the water every day or two.

**Strip all foliage below the waterline.** Submerged leaves rot rapidly and are the largest bacterial source.

**Use the sachet.** Commercial flower food contains three things for three problems: **sugar** for energy, an **acidifier** to lower pH and improve water uptake, and a **biocide** to control bacteria. This is why it outperforms improvised remedies, which usually supply only one.

**Keep them cool and out of direct sun**, and away from radiators.

**Keep them away from the fruit bowl** — this one is genuinely effective and almost universally ignored.

**Woody stems** benefit from a vertical split; **daffodils** exude a sap that harms other flowers, so condition them separately first.

**The remedies that do little:** a copper coin, aspirin, or lemonade alone.

Question 2

What is deadheading and why does it work?

Accepted Answer

Deadheading is removing spent flowers before they set seed. It works because it interrupts the plant's reproductive cycle and redirects its energy. A flowering plant's purpose, biologically, is to

Question 3

What does pruning actually do to a plant?

Accepted Answer

It redirects growth rather than simply removing material — and understanding the mechanism is what turns pruning from guesswork into something predictable. The central principle: apical dominance.

Question 4

How do you take a cutting, and what are the different types?

Accepted Answer

By removing a piece of stem and inducing it to produce roots — and the type of cutting is determined by how mature the wood is, which in turn determines when you take it and how you treat it. Why it

Question 5

How do plants actually drink, and why does a plant wilt?

Accepted Answer

Water is not pumped — it is pulled up the plant by evaporation from the leaves, and wilting is what happens when that pull outruns the supply. The mechanism, working from the top down: Transpiration.

Question 6

Why do plants flower when they do?

Accepted Answer

Mostly because of day length, which is the only environmental signal reliable enough to time a life cycle by — temperature varies wildly from year to year, but the length of the night on a given date

Question 7

What is pinching out, and which plants need it?

Accepted Answer

Pinching out (or stopping) is removing the growing tip of a shoot, usually with finger and thumb. It is one of the highest-impact things a gardener can do for five seconds of work. Why it works:

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