The Bull · April 20 – May 20
April 21 Zodiac Sign
Born on April 21, you're usually a Taurus, on the Aries–Taurus cusp — steady, sensual and loyal — the zodiac's most grounded builder.
Zodiac sign
Element · Modality
Earth · Fixed
Decan (first)
Mercury-ruled
Birthstone
Diamond
Birth flower
Sweet pea
Season position
Day 2 of 31
What astrology says about a April 21 birthday
April 21 is day 2 of Taurus season, so astrologers link it with the sign's core character: grounded, reliable, sensual, patient. Traits astrologers commonly associate with Taurus include strong appreciation for beauty and comfort; practical with money and resources; deeply loyal once trust is earned.
A commonly cited growth area for Taurus: over-indulgence in comfort. For the full picture of the sign, read the Taurus guide.
1st decan of Taurus: Mercury
Each sign is divided into three decans, 10° slices that the Sun crosses in about ten days each. April 21 falls in the first decan of Taurus (about April 20–29), which the traditional Chaldean system assigns to Mercury. Astrologers say that adds curiosity, quick thinking and verbal agility.
Mercury sharpens the mind here — expect a restless curiosity, a love of talking things through and a knack for picking up new skills fast.
A Aries–Taurus cusp birthday
April 21 is the second day of Taurus season, right beside Aries. It is often said that people born this close to a boundary show traits of both signs: Aries's courageous and direct alongside Taurus's grounded and reliable.
Astrology doesn't recognise a blended sign, and the exact moment the Sun changes signs shifts from year to year. Only a chart calculated from your birth year, time and place can confirm which side of the line you were born on.
The number 21 in numerology
The 21 is tied to sociability and self-expression. Birthdays on the 21st are read as charismatic, optimistic and at ease in a crowd.
Numerology is a separate tradition from astrology and is offered here for interest.
April birthstone and flower
The modern birthstone for April is Diamond and the commonly listed birth flower is the sweet pea. April falls in mid-spring in the north and mid-autumn in the south.
Taurus love and compatibility
Taurus falls in love slowly and stays in love for a long time. Romance is expressed through the senses and through actions: cooking a favourite meal, remembering small preferences, creating a home that feels safe.
Astrology is a symbolic tradition, not a science, and interpretations vary between astrologers. This page is for reflection and entertainment, not prediction or advice.
Beyond your April 21 Sun sign
Your Taurus Sun is one planet. Your Moon, Rising sign and the exact Mercury-ruled decan details live in your full natal chart. Get yours free on Skygram.
Get my free birth chartApril 21 birthday FAQ
What zodiac sign is April 21?
April 21 falls in Taurus, which runs from April 20 to May 20 in the tropical zodiac. The Sun changes sign at a slightly different moment each year, so the boundary can fall a day or so either side of these dates. If you were born close to the edge, your birth year, time and place decide it.
Is April 21 a cusp birthday?
Yes. April 21 sits within a day or two of the Aries–Taurus boundary, and it is often said that people born this close to a boundary show traits of both signs. Astrologers still assign the Sun to one sign, and only a birth chart calculated from your birth year, time and place shows which.
Which decan is April 21?
April 21 is in the first decan of Taurus (April 20–29). In the traditional Chaldean system this decan is ruled by Mercury, which astrologers say adds its own flavour to Taurus. Some modern astrologers assign decan rulers by element instead, which gives different planets, and decans are strictly 10° slices of the zodiac, so the date range is approximate.
What are the birthstone and flower for April?
The modern birthstone for April is Diamond and the birth flower is the sweet pea. These come from calendar tradition rather than astrology, and the lists vary by country and source.