《花儿为什么这样红》

4-13-2025 今年买的新品种

在八月的高温下存活下来了，虽然花开得特别小，花瓣儿也没几瓣儿。这是一种耐高温的月季。

高温下的鲜红色，和标签上的原色差别不小。

在八月高温下坚强地活下来了。

11月，继续开花

Both Joseph’s Coat (often referred to as Joshua's Coat) and Rio Samba are famous for that "sunset" effect, where the flowers shift through a kaleidoscope of yellow, orange, and red as they age.

While their color palettes are nearly identical, they are actually very different plants in terms of how they grow in your garden. Here is the breakdown of how to tell them apart:

The Key Differences

Why They Look So Similar

Both roses are "color-shifters." They typically open as a bright golden yellow, but as the sun hits the petals and the bloom matures, the edges turn orange, then scarlet, and eventually a deep pink or carmine.

• Joseph’s Coat is the "drama queen" of the vertical garden. Because it blooms in clusters, you will often see all three colors (yellow, orange, and red) on the same branch at the same time.

• Rio Samba is the "exhibition" version. It has the classic, spiral-petal shape of a florist's rose but with that same wild, tropical color transition.

   

How to tell which one you have:

If you aren't sure which one is in your garden, look at the stems. If the plant is throwing out long, flexible "canes" that want to lean over or climb, it’s Joseph’s Coat. If it’s a sturdy, self-supporting bush with flowers perfect for a vase, it’s Rio Samba.

Pruning Joseph’s Coat (The Climber)

Because this is a climber, the "golden rule" is horizontal training. If you let the canes grow straight up, you’ll only get flowers at the very top.

• The Horizontal Trick: Secure the long canes to your fence or trellis horizontally. This forces "lateral" shoots to grow upward all along the cane, giving you a wall of flowers rather than just a few at the peak.

• The 3-Bud Rule: When deadheading (removing spent blooms), cut the small side-stems back to about 2 or 3 budsfrom the main structural cane.

• Timing: Do your heavy structural pruning in late winter or early spring before the leaves appear. Remove any "dead, damaged, or diseased" wood first.

Pruning Rio Samba (The Hybrid Tea)

Since this is a shrub, you want to focus on airflow and "vase" shape to keep the plant healthy.

• The "V" Shape: Aim to keep the center of the bush open. Cut out any branches that are crossing through the middle. This prevents mold and black spot (which these colorful roses can be prone to).

• The Angle Cut: Always cut at a 45-degree angle about 1/4 inch above an outward-facing bud. This directs new growth away from the center of the plant.

• Hard Pruning: In early spring, you can be aggressive. Feel free to cut the whole bush down to about 12–18 inchestall. It feels scary, but Rio Samba loves it and will reward you with much larger, showier blooms.

A Quick Tip for Both:

Both of these varieties are "hungry" because they produce so much pigment. To keep those yellows and reds vivid, hit them with a high-potassium fertilizer once the first leaves emerge in spring.

======================= March 2026 =======================

花瓣儿比去年多