Most people know the 25th anniversary is silver and the 50th is gold, but fewer know there's a full theme assigned to nearly every milestone year — and that those themes translate surprisingly well into flower colors and styles. Here's a real, year-by-year breakdown, so your bouquet can echo the theme even if you're not buying the traditional material gift itself.
A quick note on where this list comes from: the tradition dates back to Victorian-era England and Germany, later expanded by the American National Retail Jeweler Association in 1937 to fill in the missing years, with a parallel "modern" list added in the 20th century as an alternative. Both lists are widely recognized today, so we've noted both where they differ.
1st anniversary — Paper
Paper's fragility is meant to represent how new the marriage still is. Crisp white or ivory arrangements pair naturally with the theme — think white roses or a clean, monochromatic design.
5th anniversary — Wood
Wood signals the marriage has put down roots. Warm, earthy tones work well here — sunflowers, amber-toned roses, or anything with a rustic, garden feel rather than a formal, polished arrangement.
10th anniversary — Tin or Aluminum
The traditional 10th theme is tin or aluminum; the modern alternative is diamond jewelry. Either way, the color direction points toward cool, metallic-adjacent tones — white or silvery-white blooms work well without needing to match a specific material literally.
15th anniversary — Crystal
Crystal calls for clarity and elegance. White orchids or an all-white arrangement with clean, architectural lines capture the theme better than anything overly colorful or casual. Our Cloud Nine Orchids is a natural fit here.
20th anniversary — China (traditional) / Platinum (modern)
China suggests delicate, refined pieces — think soft blues, whites, and pastels reminiscent of fine porcelain patterns. The modern platinum theme leans cooler and more metallic, which also points toward white or silver-toned blooms.
25th anniversary — Silver
Silver is both the traditional and modern theme for the 25th, making it one of the least ambiguous milestones to shop for. White, silver, or pale blue arrangements are the clearest match — our White Kissed arrangement leans directly into this palette.
30th anniversary — Pearl (traditional) / Diamond (modern)
Pearl represents the understated beauty that develops over a long marriage. Soft cream and blush tones fit the traditional theme, while the modern diamond theme again suggests white or silver-white arrangements if you want to lean into sparkle instead.
40th anniversary — Ruby
Ruby is both the traditional and modern theme for the 40th, and it's one of the more striking milestones to shop for — deep red is a direct, unambiguous match. Our Red Breeze arrangement, built around cascading red roses, fits this milestone almost exactly.
50th anniversary — Gold
Gold is the best-known milestone theme after silver, and for good reason — it's a genuine golden-anniversary rarity worth marking clearly. Gold, yellow, and warm amber tones are the obvious direction; our Golden Elegance arrangement, built around a gold vase with golden accents, was practically designed for this milestone.
What if your anniversary isn't a 5-year milestone?
Most years between the major milestones don't have a widely recognized theme, which is actually freeing — it means you can default to the classic anniversary color logic instead: red for passion, pink for admiration and appreciation, white for purity and new beginnings. A romantic mixed arrangement in warm, rich tones is always a safe, appropriate choice when there's no specific theme to work around.
You don't have to match the theme exactly
None of this is a rule — it's a starting point if you want your flowers to say something a little more specific than "happy anniversary." If your partner has a favorite flower or color that doesn't fit the year's theme at all, that personal preference should win every time.
Sending flowers for a work anniversary
The same color logic works for professional milestones too, just dialed back — bright, celebratory arrangements without the romantic reds and pinks tend to fit the office setting better, regardless of which year it is.
Bigger milestones tend to call for a bigger arrangement
There's no rule requiring it, but round-number milestones — the 10th, 25th, and especially the 50th — are the years couples and families tend to invest a bit more in, both because the occasion itself feels bigger and because it's often shared more publicly with family. A larger, more elaborate design (see our guide to luxury arrangements for what actually sets them apart) tends to feel more proportionate to a 25th or 50th anniversary than it would for a routine, non-milestone year — though there's nothing wrong with going all out any year you want to.
Frequently asked questions
What if my anniversary doesn't fall on a 5-year milestone?
Most non-milestone years don't have an assigned theme, so the classic anniversary color guide applies instead — red for passion, pink for appreciation, white for new beginnings.
Do I need to match the exact traditional material with real flowers?
No — the themes are a starting point for color and style direction, not a literal requirement. A partner's personal favorite flower or color should always take priority.
Which arrangement works best if I'm not sure what to pick?
A classic dozen roses in red or a soft mixed arrangement in warm tones is a safe, appropriate choice for almost any anniversary year.
Can I send anniversary-style flowers for a work anniversary too?
Yes — the same color logic applies, just leaning toward brighter, celebratory tones rather than romantic reds and pinks.