Laleh (لاله) is the Persian word for "tulip" — the flower symbolic of love and martyrdom in Persian poetry. The tulip is native to the mountains of Central Asia and was first cultivated in Persia.
Laleh is widely used in Iran.
Laleh does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Laleh reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.