Abstract: The main goal of the present study was to establish the differences between separate species of linden on the duration of several phenological stages of seedling, depends on the term of seeds harvesting. The experiments were carried out with seeds of three different species of linden Tilia platyphyllos Scop., Tilia cordata Mill. and Tilia tomentosa Moench. The seeds harvested at 30, 45, 60, 75 and 90 days after anthesis from mother tree from the region of Plovdiv Bulgaria. The seeds were sown immediately after harvest on the open air bed. The phenophases of flowering and seed formation of the mother tree were observed. The main phenophases of the seedling development to third true leaf were studied. In large-leaved lime (Tilia platyphyllos Scop.) the earliest flowering and seed maturity were established. In small-leaved lime (Tilia cordata Mill.) the seeds have sprouted ate the earliest, while in the seedlings of silver linden (Tilia tomentosa Moench.) the formation of the cotyledons, first and third true leaves were at the earliest.