Two plants, two colors, two scents. German chamomile oil is blue from chamazulene and smells medicinal-herbal. Roman chamomile is pale yellow, smells of green apples and warm hay. The perfumer's chamomile is almost always Roman.
Roman chamomile: warm, fruity, apple-like, with a herbaceous hay undertone. Sweet but not floral in the conventional sense — more orchard than garden. The angelate esters give it a particular fruity-tart brightness. German chamomile: bluer, more herbal, more medicinal — heavy, inky, with the dry bitterness of dried herbs and a camph or-like depth. The chamazulene makes it smell almost like blue ink dissolved in warm water. In perfumery, Roman is preferred for its softness and fru it character.
Evolution over time
Immediately
Immediately
Roman: bright, fruity-apple, herbaceous. A warm, tart sweetness. German: herbal, inky-blue, medicinal, heavy.
After a few hours
After a few hours
The fruity brightness fades. A warm, hay-like, slightly coumarinic warmth remains. Soft and herbaceous.
After a few days
After a few days
Moderate tenacity — 4-6 hours on skin. A faint, warm, hay-sweet residue persists. The heavier esters outlast the lighter terpenes.
The Full Story
"Chamomile" in perfumery refers to two botanically distinct plants that share a common name but produce very different oils. Roman chamomile (Chamaemelum nobile, syn. Anthemis nobilis) is a low-growing perennial from western Europe. German chamomile (Matricaria chamomilla, syn. M. recutita) is a taller annual from eastern Europe and western Asia. The oils are not interchangeable.
Roman chamomile oil is pale yellow and dominated by angelate and tiglate esters (isobutyl angelate, isoamyl angelate — constituting up to 85% of the oil). These esters give it a warm, fruity, apple-like sweetness with herbaceous undertones. It is the chamomile of perfumery — a warm, soft, slightly fruity floral note used in classic and modern compositions.
German chamomile oil is vivid blue, colored by chamazulene — a sesquiterpene that forms during steam distillation (it does not exist in the fresh plant). Alpha-bisabolol is the other key component. The scent is more herbal, more medicinal, less fruity than Roman — it reads as "pharmacy" rather than "garden." It is prized more by aromatherapists and flavorists than by perfumers.
In fine perfumery, chamomile is a heart note that adds a soft, herbaceous-fruity warmth without competing with stronger florals. It works in aromatic, fougere, and herbal-green compositions. The apple-like quality of Roman chamomile connects it to fruity accords, while its hay-like dry-down links it to coumar in and tonk a notes.
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The blue color of German chamomile oil is an artifact of the distillation process. Chamazulene — the deep blue sesquiterpene responsible for the color — does not exist in the living plant. It forms during steam distillation from the colorless precursor matricin through a decarboxylation reaction driven by the heat and steam.
Extraction & Chemistry
Extraction method: Steam distillation of flower heads. Roman chamomile (Chamaemelum nobile): yield approximately 0.5-1.5% from dried flowers. The oil is pale yellow to light blue. German chamomile (Matricaria chamomilla): yield approximately 0.2-0.4%. The oil is deep blue due to chamazulene, which forms during the distillation process (not present in the fresh plant). Major production regions: England and France (Roman), Egypt, Hungary, and Germany (German). CO2 extraction of German chamomile preserves bisabolol content without forming chamazulene.
Molecular Formula
C₁₄H₂₂O (Chamazulene, blue character-impact compound)
CAS Number
8002-66-2
Botanical Name
Matricaria chamomilla
IFRA Status
No known restrictions
Synonyms
ROMAN CHAMOMILE · GERMAN CHAMOMILE · MATRICARIA
Physical Properties
Odor Strength
High
Lasting Power
123 hour(s) at 100.00 %
Appearance
pale yellow to yellow liquid
Flash Point
125.00 °F. TCC ( 51.67 °C. )
Specific Gravity
0.91300 to 0.95300 @ 25.00 °C.
In Perfumery
Chamomile (Roman) functions as a heart note providing soft, herbaceous-fruity warmth. It appears in fougere and aromatic compositions where its apple-hay character complements lavender and coumar in. in contemporary use, chamomile is used more as a modifier than a lead note — small doses (0.5-2%) add a warm, fruity naturalism to green, herbal, or aromatic accords. Roman chamomile blends with lavender, clary sage, bergamot, neroli, and rose. The oil is relatively expensive due to low yield, which lim its its use to fine fragrance rather than functional products.
